Along with its famous orchestra and Mummers Parade, Philadelphia boasts the world's largest park, as well as the country's best collection of art and widest variety of urban architecture. You'll understand why W.C. Fields' self-written epitaph was, "On the whole I'd rather be in Philadelphia."
Philadelphia's Historic District covers Olde City and extends from the Delaware River to 8th Street, and from Arch Street south to Spruce Street. Home to must-see historical sites like Independence Hall, Congress Hall, Carpenters' Hall, Old City Hall, Graff House and the First and Second Banks of the United States, the area is considered the nation's most historic mile.
Loosely defined as the area between Walnut, Lombard, Front and 8th streets, Philadelphia's Society Hill contains the largest concentration of original 18th- and early 19th-century architecture of any place in the United States. Named after the 18th-century Society of Free Traders, Society Hill contains a wealth of notable historic buildings, including Society Hill Synagogue and St. Peter's Church.
Once used as a burial ground and public execution site, Logan Circle, at Benjamin Franklin Parkway and 19th Street, today features some of the loveliest flowerbeds in Philadelphia. Many of the city's most important institutions are located in the area: the Franklin Institute, the Free Library of Philadelphia, the Academy of Natural Science and the Cathedral of Saints Peter and Paul.
Philadelphia is a wonderful travel destination any time of year, but for the best deals, visit in the fall or winter. You'll enjoy the concert and museum seasons that begin in October and run through June. Avoid summer, when the heat can be uncomfortably humid and the crowds of tourists are thick.