Located inside Tenderloin's Bourbon & Branch, this super-secret bar is accessed through a trap door in the floor. To get in, you open a floorboard inside Russels Room (another private room inside Bourbon & Branch) then enter a dark basement with a two-seat bar and lockers filled with booze. It's named after the actual speakeasy that operated in the same space during the Prohibition, so it's pretty much the real deal.