WASHINGTON, DC GO... PARTY

Columbia Room

A reservations-only barwithin- a-bar tucked in the back of the Passenger, this is the door to the sublime art of seasonal mixology. Bathed in candlelight, Derek Brown tends to 18 seats, creates a three-course drink tasting menu ($64) of rediscovered, reinvented classic cocktails. Check the website for classes; this month features a how-to on garnishes (April 16).(04/2011)