Warsaw is the capital of Poland and its largest city. It is located on the Vistula river roughly 370 km from both the Baltic Sea coast and the Carpathian Mountains. Its population as of 2011 was estimated at 1.7 million with a metropolitan area of approximately 2.7 million. The city area amounts to 517 km², with an agglomeration of 6100.43 km². Warsaw is internationally notable for giving its name to the Warsaw Pact, Warsaw Convention and the Treaty of Warsaw.
The city is home to many industries, including manufacturing, steel, electrical engineering, and automotive; it features 66 institutions of higher learning, including Warsaw University, Stefan Wyszyński University, Warsaw University of Technology, Warsaw School of Economics, and a Medical Academy. Warsaw is home to over 30 theatres, including the National Theatre and Opera and the National Philharmonic Orchestra.