Location: New York

Little is known about the extremely exclusive Knickerbocker Club. Founded in 1871 because the standards of the Union Club had "fallen too low" in the eyes of a few high-powered socialites, the Knickerbocker Club has been a secretive, elite club since its inception. We know that the F.D.R. was a member, that women still aren't allowed inside, and the building is lovely. That's about it.