Each Thursday until October 29, San Francisco’s California of Academy of Science (55 Music Concourse Drive, Golden Gate Park) stays open late for Nightlife, a 21 and up evening of booze, music, and science. ($10, 6pm to 10pm)

This is definitely something that I’m going to have to check out.

A similar event occurs, the first Friday of every month at LA’s Natural History Museum (900 Exposition Boulevard, LA), aptly named First Fridays. (notcot.com great photos of the LA event.)