Berlin is the capital city and one of sixteen states of Germany. With a population of 3.4 million in its city limits, Berlin is the country's largest city.Broke but dynamic, Berlin seeks new identity It is the second most populous city and the ninth most populous urban area in the European Union.INSEE. Population des villes et unités urbaines de plus de 1 million d'habitants de l'Union européenne. Retrieved on 2007-10-22. Located in northeastern Germany, it is the center of the Berlin-Brandenburg metropolitan area, comprising 5 million people from over 180 nations.Indicators for larger urban zones 1999 - 2003, Eurostat. Accessed March 9, 2007