Opened in 1913, Grand Central Terminal covers 48 acres, and has 44 platforms, servicing 56 tracks, 30 tracks on the upper level and 26 on the lower. One track secretly goes to the Waldorf-Astoria Hotel
Street-level plan of Grand Central
Cut-away diagram of Grand Central, showing underground rail systems
Cut-away view, published in Scientific America, 1912
Another cut-away view, from an unknown magazine
Bird’s eye view sketch of Grand Central c.1913