On a search for the best drink in D.C.? There's a high chance of you finding it at the Columbia Room. Located within another bar — The Passenger — this reservations-only, 10-seat affair offers a drink tasting menu that includes an opening drink, a seasonal drink paired with an amuse bouche, and a third drink of your choice that's been customized to your preferences by the place's master bartenders. Like what you had? Sign up for their Saturday afternoon classes and perfect your own drinkmaking craft.