With 5 separate lines and 124 stations throughout New York City, the Hudson Valley, and Connecticut, the Metro-North Commuter Railroad
Though Grand Central Terminal is one of NYC's most visited and recognizable landmarks, there are places within the building that remain hidden and mysterious.
NYC's iconic Grand Central Terminal is one of the most beautiful places in the city, and, like most old things here, has plenty of secrets to its name.
Deep below NYC's Grand Central Terminal, there's a hidden power station known as M42 that does not appear on a single map or blueprint. Here's a look inside.