7. There’s a Secret Storage Space Beneath the Triborough Bridge Roadway 

Photo from Library of Congress New York World-Telegram & Sun Collection via Wikimedia Commons 

In 1966, a room was added to the old Administration Building to display Robert Moses’ collection of maps, charts and models. Mock up of projects that were never constructed, including the Mid-Manhattan Expressway and the Long Island Sound Crossing, were stored there until the room was turned into office space following Moses’ retirement. The models were then moved to various locations, including a storage area underneath the Robert F. Kennedy Bridge roadway, before they were transferred to the MTA Bridges and Tunnels’ Special Archive in the 1980s. Today, the archive holds a collection of 100,000 photos, 40,000 drawings, 50 scale models and 40,000 feet of film footage.