Interior of Railway Suspension Bridge, 800 feet long.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Tunnel No. 1 and Columbia N.P.R.R. River.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Pennsylvania Railroad, Allegheny Tunnel. Stereoscope card.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Pennsylvania Railroad, The Allegheny Tunnel. Stereoscope card.
Picryl description: Public domain image of a locomotive, train tracks, rail transportation, railroad, railway, 19th-20th century, free to use, no copyright restrictions.
Pennsylvania Railroad, Carr’s Tunnel. Stereoscope card.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Railroad tunnel. Lancaster PA. 19th century stereoscope card.
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
Turn Hole bridge and tunnel, Glen Onoko.
Pennsylvania stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who... More
Tunnel No. 3 and Weber River. - stereoscopic view, public domain photo...
Public domain image of a train station, free to use, no copyright restrictions - Picryl description
Tunnel no. 12, Strong's Cañon. Central Pacific Railroad Company. 19th ...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Construction of Fort George Tunnel.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
![Hudson River Vehicular Tunnel [Holland Tunnel]](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MjIvMDEvMDEvaHVkc29uLXJpdmVyLXZlaGljdWxhci10dW5uZWwtaG9sbGFuZC10dW5uZWwtYWMwZGUyLTEwMjQuanBn/40/30/webp "Hudson River Vehicular Tunnel [Holland Tunnel]")
Hudson River Vehicular Tunnel [Holland Tunnel]
Public domain scan of a vintage map, plan, atlas, free to use, no copyright restrictions - Picryl description.
The Tunnel, River Drive, Fairmount Park, Philadelphia, Pa.
Picryl description: Public domain photo of vintage Pennsylvania postcard, free to use, no copyright restrictions image.
Mason Tunnel on the C. & O. R. R., Virginia
Picryl description: Public domain photo of a vintage Ohio postcard, free to use, no copyright restrictions image.
Public domain image of New york city cityscape, free to use, no copyri...
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Wallkill pressure tunnel. Side-wall and arch forms in place ready for ...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Wallkill pressure tunnel. View showing "trailing" method of placing co...
Picryl description: Public domain image of a mining, coal mine, underground, free to use, no copyright restrictions.
Camps. Chemical dosing plant for treating the tunnel drainage and spoi...
Public domain photograph of bank building, free to use, no copyright restrictions image - Picryl description
Camps. Yonkers pressure tunnel. ... Contract 54. October 28, 1910.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Rondout pressure tunnel. View of concrete ring in place at top of shaf...
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Rondout pressure tunnel. Completed excavation with temporary roof timb...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Rondout pressure tunnel. ... Contract 12. September 11, 1916.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Rondout pressure tunnel. View showing completed excavation and roof ti...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Eastview tunnel. Interior view, showing concrete of arch and side-wall...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Moodna supplementary tunnel. .. Contract 160. April 28, 1915.
Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description
Mosambique Tunnel. Arkansas. 19th century stereoscope card.
Arkansas stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More
West End, Toltec tunnel. - Sterescope Card, Colorado
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
Stereoscopic views of the Hoosac Tunnel, Massachusetts, and vicinity.
Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More
![[Workers at mouth of tunnel.] Massachusetts stereoscope card collection, NYPL](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvd29ya2Vycy1hdC1tb3V0aC1vZi10dW5uZWwtN2JhMWJlLTY0MC5qcGc%3D/40/20/webp "[Workers at mouth of tunnel.] Massachusetts stereoscope card collection, NYPL")
[Workers at mouth of tunnel.] Massachusetts stereoscope card collectio...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Hoosac Tunnel, west end. Massachusetts stereoscope card collection, NY...
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
![[View of a child with a shovel standing behind a tunnel of snow in front of a house.]](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvdmlldy1vZi1hLWNoaWxkLXdpdGgtYS1zaG92ZWwtc3RhbmRpbmctYmVoaW5kLWEtdHVubmVsLW9mLXNub3ctaW4tZnJvbnQtb2YtOGQzY2EyLTY0MC5qcGc%3D/40/25/webp "[View of a child with a shovel standing behind a tunnel of snow in front of a house.]")
[View of a child with a shovel standing behind a tunnel of snow in fro...
Ohio stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembl... More
In the tunnel of a coal mine, Pittsburg, Penn'a.
Picryl description: Public domain image of a coal mine, mining, free to use, no copyright restrictions.
Railroad tunnel and tracks through mountain.
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
Tunnel at Summit Station, Catawissa R.R.
Public domain image of a train station in Boston, Massachusetts, free to use, no copyright restrictions - Picryl description
![Junc's R.R. [railroad] tunnel under Market & Chestnut Streets.](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvanVuY3MtcnItcmFpbHJvYWQtdHVubmVsLXVuZGVyLW1hcmtldC1hbmQtY2hlc3RudXQtc3RyZWV0cy1mYzA0YmQtNjQwLmpwZw%3D%3D/40/20/webp "Junc's R.R. [railroad] tunnel under Market & Chestnut Streets.")
Junc's R.R. [railroad] tunnel under Market & Chestnut Streets.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Tunnel No. 3, Weber Canon. U.P.R.R.
Utah stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembl... More
The Summit Tunnel, 1,200 feet long, Livermore Pass.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
![West Point from R.R. Tunnel at Garrisons. [Winter.]](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzIwMTYvMDMvMTQvd2VzdC1wb2ludC1mcm9tLXJyLXR1bm5lbC1hdC1nYXJyaXNvbnMtd2ludGVyLWU2Y2M2My02NDAuanBn/40/19/webp "West Point from R.R. Tunnel at Garrisons. [Winter.]")
West Point from R.R. Tunnel at Garrisons. [Winter.]
New York stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More
![Hudson River Vehicular Tunnel [Holland Tunnel]](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MjIvMTIvMzEvaHVkc29uLXJpdmVyLXZlaGljdWxhci10dW5uZWwtaG9sbGFuZC10dW5uZWwtNWEzOTUzLTEwMjQuanBn/40/30/webp "Hudson River Vehicular Tunnel [Holland Tunnel]")
Hudson River Vehicular Tunnel [Holland Tunnel]
Public domain scan of a vintage map, plan, atlas, free to use, no copyright restrictions - Picryl description.
The long stretch where White could not see where the river was going a...
Robert Brewster Stanton photographs
Hoosac Tunnel, West Portal, North Adams, Mass.
Public domain photo of vintage Massachusetts postcard, free to use, no copyright restrictions image - Picryl description
First Tunnel, Grand River Canyon, Colo.
Picryl description: Public domain photo of vintage Colorado postcard, free to use, no copyright restrictions image.
Raton Tunnel, Highest Point on Santa Fe, Raton, N.M.
Public domain image of an arch structure, bridge, historic place ruins, classical architecture, free to use, no copyright restrictions - Picryl description
Machinery for compressing air, Hoosac Tunnel.
Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More
Central Park, the Tunnel. New York Sterecope Card.
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
![Index [Finger] Rock, Upper Weber Canyon, near Tunnel No. 3. Union Pacific Railroad.](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE4NTAvMDEvMDEvaW5kZXgtZmluZ2VyLXJvY2stdXBwZXItd2ViZXItY2FueW9uLW5lYXItdHVubmVsLW5vLTMtdW5pb24tcGFjaWZpYy1yYWlscm9hZC05M2Y1YWYtNjQwLmpwZw%3D%3D/40/20/webp "Index [Finger] Rock, Upper Weber Canyon, near Tunnel No. 3. Union Pacific Railroad.")
Index [Finger] Rock, Upper Weber Canyon, near Tunnel No. 3. Union Paci...
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
Garrison tunnel. View showing methods of timbering. Bench mucking in p...
Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description
Hudson pressure tunnel. General view looking north at site of tunnel ...
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Wallkill pressure tunnel. ... Contract 47. November 13, 1911.
Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description
Croton Lake pressure tunnel. View of section of tunnel showing comple...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Bonticou tunnel. General view showing the South portal with stone-crus...
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Breakneck pressure tunnel. ... Contract 80. August 29, 1916.
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description
Yonkers pressure tunnel. One type of steel forms for lining tunnel. ....
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Rondout pressure tunnel. Section of steel interlining in place to rei...
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description
Map of routes to the Holland Tunnel.
Public domain image of the vintage map from NYPL Lionel Pincus and Princess Firyal Map Division, free to use, no copyright restrictions image. The Lionel Pincus and Princess Firyal Map Division is one of the wo... More
Looking through Wawona tunnel to Vermont, New York and Pittsburgh BigT...
Picryl description: Public domain image of trees, forest, park, free to use, no copyright restrictions.
The "N.C.Munson," first engine through Hoosac tunnel, February 9th, 18...
Picryl description: Public domain image of a locomotive, train cars, railroad tracks, railway, 19th-20th century, free to use, no copyright restrictions.
Interior view of Hoosac tunnel. Massachusetts stereoscope card collect...
Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More
View of the cascade 125 feet high, 1-4 mile up the creek, to the right...
Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More
The entrance of the Shawangunk Tunnel, on the east side.
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
Chaos Gorge,,below tunnel, Havana Glen.
New York State stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker w... More
Tunnel, Havana Glen. New York Sterecope Card.
New York stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More
Tunnel at Summit Station, Pa. Catawissa Railroad Company. Pennsylvania...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Group of miners in the main tunnel (1 1/2 miles long) of a huge coal m...
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
![Philadelphia. [Tunnel and bridges]. Stereoscope card, 19th century Philadelpia PA.](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvcGhpbGFkZWxwaGlhLXR1bm5lbC1hbmQtYnJpZGdlcy1iODhlZTYtNjQwLmpwZw%3D%3D/40/20/webp "Philadelphia. [Tunnel and bridges]. Stereoscope card, 19th century Philadelpia PA.")
Philadelphia. [Tunnel and bridges]. Stereoscope card, 19th century Phi...
Picryl description: Public domain image of an arch bridge, stone architecture, free to use, no copyright restrictions.
East end of tunnel, Weber Cañon.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Tunnel on N. & W. R. R. - Lower End.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Entrance to tunnel, east end. Massachusetts stereoscope card collectio...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Pennsylvania Railroad, Columbia Tunnel. Stereoscope card.
Public domain image of a train station in Boston, Massachusetts, free to use, no copyright restrictions - Picryl description
Tunnel at Summit Station, Pa. Catawissa Railroad Company. Pennsylvania...
Pennsylvania stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who... More
Montfaucon : Destroyed entrance to tunnel used by the German crown pri...
Public domain photograph of 19th-century vintage card, free to use, no copyright restrictions image - Picryl description
Rondout pressure tunnel. ... Contract 12. October 6, 1910.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Rondout pressure tunnel. ... Contract 12. April 20, 1911.
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description
Rondout pressure tunnel. Showing method of placing concrete in arch. ...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Mosambique Tunnel. Arkansas. 19th century stereoscope card.
Arkansas stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More
Fairy Grotto, Toltec tunnel, Colorado. - Sterescope Card, Colorado
Colorado stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More
Tunnel on N. & W. R. R. - Upper End.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
![[Buildings and tracks near the tunnel.]](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvYnVpbGRpbmdzLWFuZC10cmFja3MtbmVhci10aGUtdHVubmVsLTYwOWQ1Mi02NDAuanBn/40/20/webp "[Buildings and tracks near the tunnel.]")
[Buildings and tracks near the tunnel.]
Public domain image related to an industrial revolution, industry history, factory building, 19th century, free to use, no copyright restrictions image - Picryl description.
View of east end of tunnel looking out.
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
Entrance to tunnel, west end. Massachusetts stereoscope card collectio...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
The Tunnel in the Jackson Iron Mine.
Picryl description: Public domain image of a coal mine, mining, free to use, no copyright restrictions.
The Breckneck Tunnel. New York Sterecope Card.
Public domain image of a train station in Boston, Massachusetts, free to use, no copyright restrictions - Picryl description
Fall Creek, tunnel, Ithaca. New York Sterecope Card.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Central Park, the Tunnel. New York Sterecope Card.
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
Tunnel, Havana Glen. New York Sterecope Card.
New York stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More
Pennsylvania Railroad, Columbia Tunnel. Stereoscope card.
Public domain image of a train station in Boston, Massachusetts, free to use, no copyright restrictions - Picryl description
![Index [Finger] Rock, Upper Weber Canyon, near Tunnel No. 3. Union Pacific Railroad.](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE5MDAvMTIvMzEvaW5kZXgtZmluZ2VyLXJvY2stdXBwZXItd2ViZXItY2FueW9uLW5lYXItdHVubmVsLW5vLTMtdW5pb24tcGFjaWZpYy1yYWlscm9hZC00ZGUzZjEtNjQwLmpwZw%3D%3D/40/20/webp "Index [Finger] Rock, Upper Weber Canyon, near Tunnel No. 3. Union Pacific Railroad.")
Index [Finger] Rock, Upper Weber Canyon, near Tunnel No. 3. Union Paci...
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
From Tunnel no. 10, looking west. Building wall across the ravine.
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
Hudson & Manhattan Subway Terminal New York
Picryl description: Public domain photo of vintage New York postcard, free to use, no copyright restrictions image.
First Tunnel, Grand River Canyon, Colorado
Picryl description: Public domain photo of vintage Colorado postcard, free to use, no copyright restrictions image.
East Portal, Hoosac Tunnel, Berkshire Hills, Mass.
Public domain photo of vintage Massachusetts postcard, free to use, no copyright restrictions image - Picryl description
Washington Street tunnel, east entrance. Chicago Stereoscope Card Coll...
Public domain image of a historic building, free to use, no copyright restrictions - Picryl description
View of the cascade 125 feet high, 1-4 mile up the creek, to the right...
Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker wh... More
The entrance of the Shawangunk Tunnel, on the west side.
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
![Junc's R.R. [railroad] tunnel under Market & Chestnut Streets.](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE4NTAvMDEvMDEvanVuY3MtcnItcmFpbHJvYWQtdHVubmVsLXVuZGVyLW1hcmtldC1hbmQtY2hlc3RudXQtc3RyZWV0cy0xYjViYmYtNjQwLmpwZw%3D%3D/40/20/webp "Junc's R.R. [railroad] tunnel under Market & Chestnut Streets.")
Junc's R.R. [railroad] tunnel under Market & Chestnut Streets.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
![Philadelphia. [Tunnel and bridges]. Stereoscope card, 19th century Philadelpia PA.](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE4NTAvMDEvMDEvcGhpbGFkZWxwaGlhLXR1bm5lbC1hbmQtYnJpZGdlcy0yNjJiMzUtNjQwLmpwZw%3D%3D/40/20/webp "Philadelphia. [Tunnel and bridges]. Stereoscope card, 19th century Philadelpia PA.")
Philadelphia. [Tunnel and bridges]. Stereoscope card, 19th century Phi...
Picryl description: Public domain image of an arch bridge, stone architecture, free to use, no copyright restrictions.
![East entrance to Mullen Tunnel. [Men working at the entrance to the tunnel.]](https://cache.getarchive.net/Prod/thumb/cdn6/L3Bob3RvLzE4NTAvMDEvMDEvZWFzdC1lbnRyYW5jZS10by1tdWxsZW4tdHVubmVsLW1lbi13b3JraW5nLWF0LXRoZS1lbnRyYW5jZS10by10aGUtdHVubmVsLWY1YmI3Zi02NDAuanBn/40/23/webp "East entrance to Mullen Tunnel. [Men working at the entrance to the tunnel.]")
East entrance to Mullen Tunnel. [Men working at the entrance to the tu...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
East end of tunnel, showing bed of road.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Assembling iron work on Pontoon - Harlem River Tunnel.
Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.
Camps. Croton Lake pressure tunnel. ... Contract 24. July 26, 1909.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
City tunnel. Shaft 20. ... Contract 67. June 11, 1913.
Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description