How to get in: They take same day reservations, which you can only schedule after 3pm. Once you’ve snagged one, you’ll have to enter the bar through a phone booth in the back of a hot dog shop. When you ring the rotary dial on the phone, you’ll be connected to a host that grants you access.
Hidden bars (or speakeasies) are making a comeback with some really interesting locations. For some, you can enter through a phone booth or an "investment company." Here are 25 hidden bars and how you get in.