History: Balancing on the rooftop, Washington, D.C., 1917 [1800 x 1257]

http://i.imgur.com/c0XW5ki.jpg via /r/HistoryPorn http://www.reddit.com/r/HistoryPorn/comments/4enahh/balancing_on_the_rooftop_washington_dc_1917_1800/