Stuttgart is the capital of Baden-Württemberg, Germany, with a population of approximately 600,000 in the immediate city and more than 2,5 million people in the metropolitan area. Stuttgart was founded in the 10th century; its name is a modern version of the original Stutengarten ("mare's garden"). Presently it is the 6th largest city in Germany. It is most famous for its automotive industry - both Porsche and Mercedes-Benz have their headquarters in Stuttgart and both have car museums. Other museums in Stuttgart include a modern arts a historical and a musical instruments museum amongst others. Stuttgart is a big city with a small-town atmosphere.Stuttgart also has a zoo. Stuttgart has many seasonal festivals all year round. Winters last from December to March. The coldest month is January with an average temperature of 0 °C (32 °F). Snow cover tends to last no longer than a few days although it has been known to last several weeks at a time as recently as 2010. The summers are warm with an average temperature of 20 °C (68 °F) in the hottest months of July and August. Summers last from May until September.