Onyx/Thin
852 Fifth Avenue, San Diego, CA 92101
Open till 4:00 a.m. on Friday and Saturday, Onyx plays host to a variety of popular nightlife diversions: burlesque shows, Latin-jazz bands, top-40 DJs, and contemporary R&B. Though rarely meriting “plan A” status for the evening, it’s worth a visit if you find yourself downtown at bar-close with midnight oil to burn. Expect to pay about a zillion dollars for cover and cocktails; though, in fairness, the venue’s literally underground location and cavernous performance space make for a unique late night on the town.