Fodor's Expert Review Boston National Historical Park at Faneuil Hall

A 7,400-square-foot National Park Service visitor center at Faneuil Hall features history exhibits, a film-screening area, and a bookstore. It's the starting point for NPS rangers' two different 60-minute Freedom Trail tours and other talks; there's a sister site at Charlestown's Navy Yard. It's open daily from 9 to 4. Other Boston NPS sights include the Boston African American National Historic Site on Beacon Hill, home to guided tours of the Black Heritage Trail, and the Boston Harbor Islands National Recreation Area, with trails, forts, wildlife, and camping on 34 islands.