Wolfsburg is the fifth largest city in the German state of Lower Saxony. Located on the River Aller. It lies about east of Hanover and west of Berlin. thumb In 2013, Wolfsburg ranked as the richest city in Germany with a GDP per capita of $128,000, due to its thriving auto industry. Wolfsburg is famous as the location of Volkswagen AGs headquarters and the worlds biggest car plant. The Autostadt is a visitor attraction next to the Volkswagen factory that features the companys model range: Audi, Bentley, Bugatti, Ducati, Lamborghini, MAN, Neoplan, Porsche, Scania, SEAT, Škoda Auto and Volkswagen Commercial Vehicles. Wolfsburg is one of the few German cities built during the first half of the 20th century. From its foundation on 1 July 1938 as a home for workers producing the "KdF-Wagen" until 25 May 1945, the city was called "Stadt des KdF-Wagens bei Fallersleben". In 1972, the population first exceeded 100,000.