Gothamist, 7/27/15:
A Piece Of The Original Penn Station Is Still Standing On 31st Street
The glorious old Pennsylvania Station is long gone, but there is a piece of it left on 31st Street, hidden in plain sight. The much smaller granite building that remains isn't as grand as the original station was, but it's still a lot nicer than our present-day incarnation, which cowers below Madison Square Garden in the old station's footprint.