When Union Station was renovated, the mezzanine was turned into one of the most enchanting bars in town: the Cooper Lounge. With elegant seating areas and a long bar fronted by comfortable stools, it’s a great place to meet up with friends from out of town. But it's also become something of a favorite with locals, particularly on full-moon nights, when you can sit on a barstool sipping a martini and look over 17th Street bathed in moonlight. The view is magical. And you might need to be a magician to secure a spot here: There's sometimes a two-hour wait.