Grand Central in NY https://gcthistory.com/

https://www.getyourguide.com/new-york-city-l59/nyc-grand-central-terminal-official-walking-tour-t428395/?ranking_uuid=7405ae14-00a1-4cdb-9c24-97e7a5b554e3

https://www.getyourguide.com/new-york-city-l59/holiday-hygge-tour-heart-of-manhattan-with-top-of-the-rock-t545822/?ranking_uuid=7405ae14-00a1-4cdb-9c24-97e7a5b554e3

Train Station in Philadelphia 30th Street Station https://philly.curbed.com/2017/9/20/16277758/30th-street-train-station-amtrak-food-parking

Philly is home to one of the last remaining grand train stations in America, the monumental 30th Street Station. Each year, more than 4 million passengers travel to and from the train station, making it Amtrak’s third busiest hub in the nation.

Union Station in DC https://en.wikipedia.org/wiki/Washington_Union_Station