I've just moved to DC (been here a week) from New York and I sorely miss the historic design aesthetic of many restaurants and bars there. For instance, tin celiings, brick walls, large windows, woodwork, dusty old mirrors, edison bulbs, the occasional chandelier - a sort of eclectic style that reminds you of a bygone era. I walked by Marvin's the other day and that seemed to have potential. Are there any others?
In New York, some examples would be Ten Bells, Supper, Ruby's, Cafe Colonial, Epistrophy, Balthazar, Home Sweet Home. Or in Brooklyn, the Richardson, Hotel del Mano, Fette Sau, Greenpoint Coffeehouse, Enid's, Five Leaves. Or if you know LA, Citizen Smith, Bar Marmont and the Edison were beautiful examples. I attached pictures of Ten Bells, Greenpoint Coffeehouse and Epistrophy for reference.
Or, if DC doesn't do NYC style much at all, maybe it has its own unique aesthetic going on?