Aub Zam Zam

This tiny bar became famous under notoriously cantankerous owner Bruno Mooshei, who inherited it from his father and waged a one-man campaign to keep it exactly as it must have been circa World War II. Mooshei died in 2000, but the place was bought by long-time patrons devoted to keeping its Casablanca aura intact, and they've done an excellent job. Even the likes of Anthony Bourdain considers it an SF-must. Zam Zam makes SF's best stiff, old school martini. Note: it’s cash-only.