The Spree (German pronunciation: [ˈʃpʁeː]; Sorbian: Sprjewja, Czech: Spréva) is a river that flows through the Saxony, Brandenburg and Berlin states of Germany, and in the Ústí nad Labem region of the Czech Republic. It is a left bank tributary of the River Havel and is approximately 400 kilometres (250 mi) in length.
The reach of the river between the Dämeritzsee and Müggelsee to the east of Berlin is known as the Müggelspree.
Berlin (pron.: //; German pronunciation: [bɛɐ̯ˈliːn] ( listen)) is the capital city of Germany and one of the 16 states of Germany. With a population of 3.5 million people, Berlin is Germany's largest city and is the second most populous city proper and the ninth most populous urban area in the European Union. Located in northeastern Germany on the River Spree, it is the center of the Berlin-Brandenburg Metropolitan Region, which has about 4½ million residents from over 180 nations. Due to its location in the European Plain, Berlin is influenced by a temperate seasonal climate. Around one third of the city's area is composed of forests, parks, gardens, rivers and lakes.