Rostock is the largest city in the north German state Mecklenburg-Vorpommern. Rostock is on the Warnow river; the district of Warnemünde north of the city centre is directly on the Baltic Sea coast. Rostock is home to one of the oldest universities in the world, the University of Rostock, founded in 1419. The city territory of Rostock stretches for about along the Warnow to the Baltic Sea. The largest built-up area of Rostock is on the western side of the river. The eastern part of its territory is dominated by industrial estates and the forested Rostock Heath. Rostock is considered as the only regiopolis in Mecklenburg-Vorpommern.