Taken from the a bridge over the yarra river in Melbourne looking along a beam up to the Eureka tower the tallest building in Melbourne, it kind of looks like a slide coming from the building to me.
3 shots at +/- 3EV processed in Photomatix and finished with CS5
Canon EOS 7D
Canon EFS 10-22mm at 22mm
f/11, 3 shots varied shutter speeds