Main concourse of Grand Central Terminal. (GCT) is a commuter railroad terminal at 42nd Street and Park Avenue in Midtown Manhattan in New York City. Built by and named for the New York Central Railroad in the heyday of American long-distance passenger rail travel, it is the largest such facility in the world by number of platforms with 44 serving 67 tracks along them. They are on two levels, both below ground, with 41 tracks on the upper level and 26 on the lower, though the total number of tracks along platforms and in rail yards exceeds 100. The terminal covers an area of 48 acres.