My teenaged children will be attending a convention at the Gaylord National Resortand Convention Center in Fort Washington, MD. We will be journeying from NYC and staying in Alexandria....the Old Town Area South. Whilst the kids convene, my husband and I would like some restaurant recommendations. Nothing fancy. What are some of the "must have" regional foods and restaurants, please. Ethnic is fine, funky is fine....just places that speak loudly (if not scream) Alexandria, VA. Thank you.