A big chute draining the Executive Office Building next to the West Wing of the White House. As far as I know, this chute and its surrounding scaffolding has been there since Bush took office. I assume it's there because the Executive branch has been shoveling out so much shit in the last few years it needs some way to get rid of it all lest it drown in its own B.S.
(Bad taste? Sorry, I couldn't help it.)