Berlin, the capital, is one of 16 states in Germany. With about 3.5 million people it is its leading city. Located in the beautiful region of Berlin-Brandenburg, this city has a remarkable history and was divided into East Berlin and West Berlin during the Cold War.The southeastern to western part of the city is sheltered on the bank of the Spree River. At western most part the Spree River joins the river Havel, a tributary of the Elbe. Today, Berlin hosts three well reputed universities, one of the best philharmonic orchestras worldwide and three opera houses. A large diversity of museums and one of Europe's largest university hospitals, the Charite. Berlin is also known for being a very imperative center of scientific research, with prestigious institutes and research organisations, such as the Max-Planck-Institute, the "Fraunhofer-Gesellschaft" and the “Leibniz-Gemeinschaft”. Berlin attracts especially young and creative people from all over the world, offering a high quality of life, a fascinating cultural scene and interesting career opportunities.