On Sunday, June 27th, Downtown Oakland opened two miles of its streets to fun and activities—zumba dancing, circus arts, BMX bike competitions and performances from local musicians.
 
See the video at http://www.streetfilms.org/thousands-play-in-oaklands-streets-at-the-first-ever-oaklavia/
 
Also check out Velo-City 2010: Copenhagen Bike Parade, another great video.  http://www.streetfilms.org/velo-city-2010-copenhagen-bike-parade/
 
 
David