If you’re really looking for seclusion, look no further than PDT (Please Don’t Tell). PDT is a speakeasy located behind a phonebooth in a hotdog shop. Seriously. You walk in, pick up the phone and a hostess will ask if you have a reservation. Depending on the night, you’ll usually need a reservation (they only take same day reservations) but on the off chance you can get in without one, make sure you really experience. The drinks are perfect and the food is pretty delicious. After you’re good and buzzed, head out into the night but grab a hotdog at the cover spot. More info, here.
