This upscale conference hotel is a 10-minute walk from the U.S. Capitol, the National Mall and Union Station. All the modern rooms feature work desks and lounge chairs, plus WiFi (fee), 37-inch flat-screen TVs, iPod docks and coffeemakers. Upgraded rooms include free breakfast and WiFi, while club rooms offer concierge service and free breakfast, cocktails and snacks in the lounge. Suites add living rooms, dining/conference tables and minifridges. Hypo-allergenic rooms are also available. Free perks include a gym and an indoor pool. There's also an American grill and a cocktail bar, plus more than 38,000 sq ft of meeting space.