Under Hitler's Orders, Nazi Soldiers Once Targeted This U.S. Infrastructure
Horseshoe Curve, a track with a 220-degree arc located on the Allegheny Mountainside leads trains through the scenic terrain near Altoona, Pennsylvania, attracting train enthusiasts from across the country. Built in the mid-1800s, the curve is used by trains to cut travel time while transporting 110... Sign in to see full entry.