"Walk and Bike the Alexandria Heritage Trail" is the first guide to the new 23-mile Urban Heritage Trail in Alexandria, Virginia - one of our nation’s oldest towns, rich in early American history. For bikers or hikers, the guide covers 100 historical sites and 40 museums and historical parks along the trail. Based on 30 years of original fact finding, including archaeological digs and scholarly research, the Alexandria trail is an exciting urban link in the National Park Service’s Potomac Heritage Trail system.