The Brooklyn Army Terminal (BAT) is a large warehouse complex in Sunset Park, Brooklyn, New York City. The site occupies more than between 58th and 63rd Streets west of Second Avenue, on Brooklyn's western shore. The complex was originally used as a United States Army Supply Terminal called the Brooklyn Army Base or Brooklyn Army Supply Base. It is now used for commercial and light industrial purposes, and also serves a NYC Ferry stop. The Brooklyn Army Terminal was designed by Cass Gilbert. It contains two warehouses, three piers, several smaller administrative buildings, and rail sidings for loading cargo. When built, the warehouses were among the world's largest concrete structures. The Brooklyn Army Terminal adjoins the former Bush Terminal, which was used by the United States Navy. The Brooklyn Army Terminal's construction was originally approved in 1918, during World War I, and was completed the following year after the conclusion of the war. The terminal was subsequently leased out and used for various purposes, including as a dock, a military prison, and a storage space for drugs and alcohol during Prohibition. During World War II, the terminal was the United States' largest military supply base. The United States Army stopped using the Brooklyn Army Terminal in 1967, and the terminal was briefly used by the United States Postal Service and the Navy. The New York City government purchased the terminal in 1981, and it was listed on the National Register of Historic Places in 1983. Since then, the Brooklyn Army Terminal has undergone a series of renovations to make it suitable for commercial and light industrial use. Description The Brooklyn Army Terminal covers about . It includes two 8-story warehouses, three 2-story piers, several ancillary buildings, and a train storage yard with capacity for 2,200 cars. Warehouses A and B are located west of Second Avenue between 59th and 65th Streets, with warehouse A being located to the west of warehouse B. Warehouse A had a footprint of , while warehouse B measured . The 980-foot-long sides of each structure run between 58th Street on the north and 63rd Street on the south. Warehouse B was the world's largest building by floor area when it was completed. Warehouse B contains a central atrium with two railroad tracks, both of which are disused and overgrown, and there are two old train cars permanently parked on the western track of the atrium.