Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Cobble Hill Tunnel - The Cobble Hill Tunnel (popularly the Atlantic Avenue Tunnel) of the Long Island Rail Road (LIRR) is an abandoned railroad tunnel beneath Atlantic Avenue in downtown Brooklyn New York City. When open it ran for about 2517 feet (767 m) between Columbia Street and Boerum Place.[citation needed] It is the oldest railway tunnel beneath a city street in North America that was fully devoted to railway.
Answer:
Building