Ever wonder what happens to old NYC subway cars when they retire?
Photographer Stephen Mallon's surreal, beautiful images trace New York City subway cars on their last voyage to the bottom of the Atlantic Ocean to help build artificial reefs on the eastern seabed in his series entitled, "Next Stop Atlantic."
From August 2001 to April 2010, the NYC Metropolitan Transit Authority (MTA) sent over 2,500 subway cars to reef programs in New Jersey, Delaware, Maryland, Virginia, South Carolina, and Georgia.
Photo: Mallon loves the composition and mystery, "when you see this image you have no idea what is about to happen to all these objects of mass transit."
By CBSNews.com Senior Photo Editor Radhika Chalasani