Tina Turner, Deborah Harry (aka Blondie), and LaToya Jackson—the real ones—have all played this high-tech dance club near the Alamo. The club no longer hosts live performances on a regular basis but a mixed crowd of gays and straights, young and old, still moves to the beat under wildly flashing lights. All the action—five bars, three dance floors, three levels—takes place in a restored German-style building dating to the 1880s. Roll over, Beethoven.