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

 

Philadelphia is the center of economic activity in Pennsylvania and is home to seven Fortune 1000 companies. The Philadelphia skyline is growing, with several nationally prominent skyscrapers. The city is known for its arts, culture, and history, attracting over 39 million domestic tourists in 2013.

 

Philadelphia has more outdoor sculptures and murals than any other American city, and Fairmount Park is the largest landscaped urban park in the world. There are over 80 colleges, universities, trade, and specialty schools in the Philadelphia region.

 

The city is also home to five schools of medicine: Drexel University College of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia College of Osteopathic Medicine, Temple University School of Medicine, and the Thomas Jefferson University. Hospitals, universities, and higher education research institutions in Philadelphia’s four congressional districts received more than $252 million in National Institutes of Health grants in 2015.