Philadelphia is the largest city in the U.S. state of Pennsylvania and the fifth-most-populous in the United States. In the Northeastern United States, at the confluence of the Delaware and Schuylkill River, Philadelphia is the economic and cultural center of the Delaware Valley. The estimated population in 2014 was 1,560,297.

The city contains many art museums, such as the Pennsylvania Academy of the Fine Arts and the Rodin Museum, which holds the largest collection of work by Auguste Rodin outside of France. The city's major art museum, the Philadelphia Museum of Art, is one of the largest art museums in the United States. Its long flight of steps to the main entrance became famous after the film Rocky (1976). The city is home to the Philadelphia Sketch Club, one of the country's oldest artists' clubs, and The Plastic Club, started by women excluded from the Sketch Club. It has a profusion of art galleries, many of which participate in the First Friday event. The first Friday of every month, galleries in Old City are open late. Annual events include film festivals and parades, the most famous being the New Year's Day Mummers Parade.