Twelve historic landmarks are located within and around this 1-sq-mi/1.5-sq-km area. Because it's a national park, most of the guides are park rangers. It's a lot to take in; give yourself at least an afternoon to see it all. Begin your visit at the Visitor Center for tickets to tours, maps and advice. Daily 8:30 am-6 pm. All sites are free, but timed tickets are necessary to visit Independence Hall. From Race to Walnut streets (Visitor Center is at Sixth and Market streets), Philadelphia. Phone 215-965-2305. Toll-free 800-537-7676 for the Visitor Center. http://www.independencevisitorcenter.com.
