Ok so, this has been quite popular and fun, so no reason not to carry on with it imo.
Yesterday I had a ride in the glorious sunshine, up past the Olympic site, which is really taking shape. So, I thought what better than to have a thread about sports venues?
I'll start off with a couple of velodromes, this being a cycling-based website and that.
Ours:

Went to have a look at it, but you can't get very close yet without all manner of security passes. It's really quite an impressive building. Very simple yet beautiful shape.
The Vikingskipet (viking ship) in Hamar, Norway. Venue for Chris Boardman's Hour Record. Built as a speed-skating rink for the 1994 Winter Olympics, but has also been used as a velodrome:

Athens velodrome:
































