By building I'm guessing you mean ladder.
(|D[ekionplexis B3ta.com: fictional child porn is OK,
Fri 9 Jan 2009, 22:31,
archived)
It was a building in the shape of a ladder
xihpete A neutrino walks straight through a bar, with v>c.,
Fri 9 Jan 2009, 22:39,
archived)