Club 1015 San Francisco

Four dance floors fill this three-story, state-of-the-art South of Market mecca, where crowds usually hit capacity on Friday and Saturday nights. High-ranking international and local DJs switch up the energy from room to room--a swank upstairs floor and VIP terrace; main dance floor with four huge projection screens and liquid, LED-lit "waterfall wall;" sexy dance lounge with a low, cut-out ceiling illuminated by special effects; and large basement dance floor encircled with high-backed red vinyl booths. (From Citysearch)