at least that's what they claim about the International Balloon Fiesta held in Albuquerque every year.
It's really big this year since it's the 40th anniversary, and I went on opening day- fought the crowds, waited in traffic but still had a blast since you can get close to the action.
A couple of pix from this years event...which is still going on if you want to catch it. I go every year since it's basically in my back yard! They launch 500 balloons
Ansco Pix panorama with Ektar 100
Holga 120S with Ektar 100