It "isn't a tourist bar" reveal devotees of this "old-school DC" hideaway in the subterranean level of the Hay-Adams Hotel that's a "secluded spot for secrets" or "rubbing elbows with the powerful and cynical" on plush, red-velvet banquettes; the menu of "classic cocktails" and "sincere, thoughtful service" doesn't come cheap, so "you better dress like you belong."