Philly, short for Philadelphia, is the largest city in the state of Pennsylvania and the sixth-most populous city in the United States. Founded in 1682 by William Penn, it is known for its rich history, including being the site of the signing of the Declaration of Independence and the Constitution. The city is also famous for its iconic landmarks, such as the Liberty Bell and Independence Hall. In addition to its historical significance, Philly is renowned for its diverse culture and vibrant arts scene. The city is home to numerous museums, including the Philadelphia Museum of Art, which features a wide range of artworks. Philly is also famous for its culinary contributions, particularly the Philly cheesesteak, a popular sandwich made with thinly sliced beef and melted cheese.