Right now, up until August 2nd, there's an exhibition on at Presentation House Gallery revolving around mountain biking on the North Shore. Not only have they called in some fantastic photographers to show their goods, but they've also built some serious terrain...inside the gallery! The best part is, all the terrain is fully ride-able! It look like a great show, and I'll definitely be heading up there to check it out myself.
There's a ton of photos of the construction of the indoor terrain features on this here blog. Super cool stuff!