Courtesy photo Irish Pennsylvania Railroad Workers operate machinery during railroad construction in the 1850s. The world famous Horseshoe Curve continues to be considered a modern marvel.

Completed in 1992, the facility includes a funicular to complement the 10-story stairway for viewing the curve at track level. The overall site is managed today by the Altoona's Railroaders ...

It’s all interlaced: The Pennsylvania Railroad built its main shops for repair and fabrication near the Curve, which is halfway up the Allegheny Front, and likewise built the City of Altoona ...