Originally Posted by
MSPeconomist
The Willard and Hay Adams are historic properties, close to the White House. IIRC Willard is still IC, although I don't remember it having a lounge.
Hotel Washington (used to be the "W") has a wonderful rooftop bar/lounge that is next door to both the Willard and Hay Adams. Also, Old Ebbitt Grill is a DC institution around the corner from those two.