Welcome to Potomac Towers, traditional high rise apartments, located in the in the heart of Arlington, VA. Potomac Towers. Nestled near Rosslyn and Courthouse Potomac Towers is an ideal location, just minutes from Georgetown via the Key Bridge, I-66, Route 50 and Lee Highway. Getting around the city is easy with the Courthouse Metro, which is about a ten minute walk,or grab a bike share and take a ride to nearby shops and restaurants.