Spacious one- and two-bedroom condos, two swimming pools, a kids' club, and theater with free daily movies help make this Wyndham Vacation Resort a great value for families. Located 10 miles south of D.C. in National Harbor -- a waterfront community that's undergone significant development since 2008 -- the property is a short walk from shops, restaurants, and a waterfront park with a Ferris wheel. For something more convenient to Washington attractions, families should consider Georgetown Suites, which has fewer amenities and lower rates.