Spanning the area of two football fields and standing 125-feet in the air, the largest touring tent in the world is currently sitting just a hop and a skip from the Pepsi Center in downtown Denver. The white-topped tent was built to host something other-worldly: A theatrical performance with amazing effects, specially-crafted outfits, and dancing horses. The show, Odysseo, officially opens September 17. Find out how to nab one of the 2,000 seats inside the huge tent here.