Madrid High Trestle Bridge: The 13-story high bridge over the Des Moines river is a half mile long and was built on concrete piers that previously held a railroad bridge. 41 steel frames form a twisting tunnel.
George P. Hall Son (American, active 1886–1914). Curve at Brooklyn Terminal, Brooklyn Bridge, New York., ca. 1910. The Metropolitan Museum of Art, New York. Walker Evans Archive, 1994 (1994.264.38.2) #newyork #nyc
The Kalka Shimla Railway (Toy Train) is a UNESCO World Heritage Site and a highlight of many of our rail tours to India http://www.greatrail.com/train-journeys-of-the-world/toy-train.aspx