We visited DC with children ages 13, 16 and 20 last spring. Stayed at Residence Inn in Old Alexandria - fabulous place! Clean, quiet, 2 bedrooms plus a pull out sofa, great restaurants within walking distance, walked to the Metro and were at Arlington or the Capital area within 20 minutes. Also had light dinners (cocktails and refreshments with some food at 5:30PM) and breakfasts were great. Highly recomend it for families!!!