"Only hotel guests can go to the well-manicured pool at the Washington Plaza Hotel on Thomas Circle (open 9 a.m. until 9 p.m. daily through Labor Day). Staycationers can head to the royal blue chaises lining the pool, and treat themselves to frozen cocktails, Champagne, and crab cake sandwiches at the poolside bar and terrace that lights up with candles at night." - Tierney Plumb