Penn Station is a sort-of terminal in NYC for the Long Island Railroad, AMTRAK, and the New Jersey Transit - all heavily used. One cool - if only 150 years late - is a new stop for the LIRR in Grand Central.
Grand Central Terminal has a total of 67 Metro North tracks serving the New Haven line (to Boston), the Harlem Line (s commuter line to Dutchess Co., NY), and the Hudson Line which connects to Yankee Stadium but mainly goes to Poughkeepsie. There is also a train to Montreal (The Adirondack). It might be AMTRAK - I get confused about all of the lines and destinations because there are so many.
The magnificent old (1910) McKim, Mead and White Penn Station was knocked down in the 1960s. Apparently there were some good reasons to do that . Since I almost never use that station, I am grateful that the also grand Grand Central Terminal, which I use frequently, was saved from the urban renewal wrecking ball. Lifetime of memories there.
I have not seen the new Penn Station (sort of renewed in time for the holidays). What do readers think about it?