Philadelphia, the largest city in Pennsylvania, holds a pivotal place in U.S. history. Once the nation's capital, it is home to iconic landmarks such as Independence Hall and the Liberty Bell. With a population of 1,603,797 as of the 2020 census, Philadelphia is a hub for arts, culture, and education. The city is known for its rich history, diverse neighborhoods, and vibrant arts scene. It also plays a major role in life sciences, business, and industry, making it a key city in the Mid-Atlantic region.