High Bridge spanning the Kentucky River from the Dix River.

Bridge covering Whitewater Canal, Metamora, Indiana.

Hanging Bridge at Royal Gorge, Colorado.

Bridge over Yellowstone River above the falls at Yellowstone National Park, Wyoming.

Royal Gorge is a 10-mile-long canyon through Fremont Peak on the Arkansas River near Cañon City, Colorado.

Royal Gorge is a 10-mile-long canyon through Fremont Peak on the Arkansas River near Cañon City, Colorado.

Series of four postcards featuring the prominent bodies of water enjoyed in Saugatuck, Michigan. The two postcards located at the top feature Oval Beach overlooking Lake Michigan: one features a crowded beach of sunbathers and the other a crowded…

Black and white photograph of five men standing on bank of canal next to a row boat. Some men are holding tools, and a bridge is visible in the background.

Black and white photograph of the construction of an abutment for William's Bridge on the Erie Canal. Three men are visible on the top of the structure.

Black and white photograph showing a wide shot of the Steel Arch Bridge at Niagara Falls.

Black and white photograph of a Canadian Pacific Railway viaduct in Parry Sound, Ontario. A train can be seen crossing the viaduct.

Black and white photograph of Round Lake in Charlevoix, Michigan. A bridge is visible in the background of the photo.