Did you know there’s a 150-year-old, defunct subway tunnel under Atlantic Avenue in Brooklyn? It runs from Boerum Place to Hicks Street, was built in seven months around the time of the Civil War, and was lost until 1981, when a dude named Bob Diamond found it. He gives tours of the thing, and the blogger behind McBrooklyn went spelunking with him yesterday. There are some more pics at McBrooklyn, plus a (frankly sort of boring) video. Neat, huh?
Brooklyn Spelunking: Atlantic Avenue Tunnel Tours Return [McBrooklyn]