Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania and the second largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. It is one of the most historically significant cities in the United States, and once served as the nation's capital city until 1800. The city's population at the 2020 census was 1,603,797, and over 56 million people live within 250 mi of Philadelphia. Since 1854, the city has been coextensive with Philadelphia County, the most populous county in Pennsylvania and the urban core of the Delaware Valley, the nation's seventh-largest and one of the world's largest metropolitan regions with 6.245 million residents in 2020. Philadelphia is known both for its extensive contributions to American history and for its role in the life sciences, business and industry, art, literature, and music.
Travel tip: One of the most historic cities in
America, Philadelphia is an ideal place to spend a weekend - preferably a long one. Be sure to see the Liberty Bell and Independence Hall, where the Constitution and Declaration of Independence were …tripadvisor.com