Prague is the capital and largest city of the Czech Republic, located in central Europe. Politically, the Czech Republic is a multi-party parliamentary representative democratic republic, with a president as head of state and a prime minister as head of government. Prague has a population of over 1.2 million and accounts for 25% of the country's GDP. The city is known for its ancient buildings and creative architecture, including landmarks like the Astronomical Clock from 1410 and Charles Bridge crossing the Vltava River.