Philadelphia, USA, is a city steeped in history. From the signing of the Declaration of Independence to the Liberty Bell, Philadelphia has been the birthplace of many of America's most important moments. With its cobblestone streets, iconic landmarks, and vibrant culture,
Philadelphia, colloquially referred to as Philly, is the most populous city in the U.S. state of Pennsylvania and the sixth-most populous city in the United States. Its population was 1.60 million at the 2020 census and estimated at 1.57 million in 2025. The Philadelphia metropolitan area, also known as the Delaware Valley, has 6.33 million residents and is the nation's ninth-largest metropolitan area. Philadelphia is known for its culture, cuisine, and history, maintaining contemporary influence in business and technology, sports, and music.