Neubrandenburg ("New Brandenburg", IPA) is a city in the southeast of Mecklenburg-Vorpommern, Germany. It is located on the shore of a lake called Tollensesee and forms the urban centre of the Mecklenburg Lakeland. The city is famous for its rich medieval heritage of Brick Gothic, especially the world's best preserved defensive wall of this style, and the Concert Church (Saint Mary), home venue of the Neubrandenburg Philharmony. Neubrandenburg is nicknamed for its four medieval city gates - "Stadt der Vier Tore" ("City of Four Gates"). It is part of the European Route of Brick Gothic, a route which leads through seven countries along the Baltic Sea coast. Since 2011, Neubrandenburg is the capital of the Mecklenburgische Seenplatte district. It is the third-largest city and one of the main urban centres of Mecklenburg-Vorpommern. The city is an economical power node of northeastern Germany, featuring one of the highest national ranks in employment density and GDP per capita. The closest greater urban areas are the regiopolis of Rostock and the metropolises of Szczecin, Berlin and Hamburg. Since 1991, Neubrandenburg hosts a University of Applied Sciences that also offers international exchanges, guest programs and studies.