Pennsylvania, US
Centennial Bridge was a historic stone arch bridge located in Center Valley, Pennsylvania in the Lehigh Valley region of eastern Pennsylvania. It was built in 1876, and was a 233-foot-long (71 m) bridge, with three 23-foot-long (7.0 m), horseshoe shaped arches. It crossed Saucon Creek.
Listen to the audio guide for Centennial Bridge Free on WIP — starts by itself when you arrive, even with the screen off