Turin, Italy (2006)
Prepare yourself for sensory overload. Start at 0:54, where a disco-tweaked version of Rocky's "Gonna Fly Now" provides a soundtrack for thousands of synchronized dancers whose choreography rivals even the finest collegiate marching bands. Later, at 1:28, things hit full Cirque du Soleil mode (the Louis XVI-style visuals at 1:54 should inspire at the very least a slight to moderate acid flashback). But the best is saved for Yoko Ono's tribute to her husband and partner John Lennon's mission of non-violence at 3:00. "Imagine all the people," she says, "living life in peace." And for one night in northwestern Italy, we all did.