Black Horse London Deli
This tiny bar, situated close to the Union St. shopping district, is literally the smallest bar in San Francisco. There's a nice pub-style ambience, and good pub food, too. Even non-smokers can find something to like here.
Address: 1514 Union. Phone: (415) 928-2414

Martin Macks Bar and Restaurant
Every night, Irish expatriates and Haight Street locals drop by to drink a pint with the friendly bartenders, hang out with their friends, or order up a plate of the fine Irish food Irish nigh club.
Address: 1568 Haight. Phone: (415) 864-0124

Bubble Lounge
Champagne stars on the menu at this elegant bar in the heart of the Financial District, an offshoot of New York's premier Champagne bar. Ten "salons" surrounding the bar feature velvet brocade-covered sofas and armchairs in hues of gold and black. The dress code is "casual elegant" -- no hats, shorts or tennis shoes are allowed.
Address: 714 Montgomery Street. Phone: (415) 434-4204

Beach Chalet Brewery & Restaurant
Located on the inland side of the Great Highway on the edge of Golden Gate Park, the Beach Chalet attracts a noisy, cheerful mix of tourists, suits and beachcombers.
Address: 1000 Great Highway. Phone: (415) 386-8439

Tonga Room
The Tonga Room is a tropical paradise complete with Tiki gods, lots of exotic foliage, and a genuine lightning-and-thunder rainstorm every 15 minutes or so. Located in the ornate Fairmont Hotel atop Nob Hill, the Tonga Room also features a pond in the middle of the lounge; various cheesy pop bands play on a floating stage.
Address: 950 Mason Street. Phone: (415) 772-5278

Blue Light Café
Rock n' Roll/Dance
Address: 1979 Union St., Cow Hollow. Phone: (415)-922-5510

Club DV8
Two separate dance floors.
Address: 540 Howard St. Phone: (415)-777-1419

Club 1015
A very trendy club with major attraction teenagers.
Address: 1510 Folsom St. (at 6th St.) Phone: (415)-431-1200

The Fillmore
Nightclub with various different hit music. 1805 Geary Blvd. (at Fillmore St.). Phone: (415)-346-6000

The Marsh's Mock Café
The Mock Café describes itself as a "creative cauldron into which writers, actors, dancers, choreographers, musicians, composers, and designers throw their collective talents." It's more storefront performance space than café -- they don't serve latte, for example -- but what they do have on tap is some of the city's best alternative entertainment.
Address: 1074 Valencia Street. Phone: (415) 641-0235

One World Café
Friday nights, One World hosts a popular comedy event emceed by Leo Gilreath. Comics include Colin Mahin, Bill Santiago, John Hoogasian, Jane Barbone and others.
Address: 1799 McCallister Street. Phone: (415) 775-9358

Anabelle's Bar & Bistro-
Live jazz music every Saturday night.
Address: 68 4th St., SoMa 415-777-1200

Bix
Live jazz and blue music in a cool atmosphere.
Address: 56 Gold St., between North Beach and Downtown. Phone: 415-433-6300

Blues
A lively place with jazz music and a dance floor
Address: 2125 Lombard St., in the Marina. Phone: 415-771-2583

Cypress Club
Great western music through till 4.
Address: 500 Jackson St., Jackson Square. Phone: 415-296-8555

Six 60
The two-level club, though, is getting a reputation as one of the city's best new dance clubs. There's a spacious lounge on tops, with plenty of couches; a comfortable bar; and downstairs you'll find an underground dance floor manned by local name deejays. The dance floor here is spacious and populated by serious clubbers.
Address: Sixth Street. Phone: (415) 863-1221

Cat Club
This new remodel of a once-famous club attracts yuppies, gays and straight -- even the occasional goth -- to an alley south of Market Street. With two rooms and two dance floors, the new Cat Club is anything but the dank alley club it used to be
Address: 1190 Folsom Street. Phone: (415) 431-3332