Century Bar was a 23rd century tavern establishment located near the shuttleport in San Francisco, California on the planet Earth.
History and specifics
Century Bar was one of the closest bars to the port.
In the year 2273, Hikaru Sulu met a group of bar-hoppers on shore leave who had stopped by Century Bar. Sulu was familiar with the bar and correctly guessed that the group had visited it first. (TOS eBook: Shadow of the Machine)