Nürburgring is a 150,000-capacity motorsports complex located in the town of Nürburg, Rhineland-Palatinate, Germany. The "North loop" track was built in the 1920s around the village and medieval castle of Nürburg in the Eifel mountains. The north loop is 20.8 km (12.9 mi) long and has more than 300 metres (1,000 feet) of elevation change from its lowest to highest points. Jackie Stewart nicknamed the old track "The Green Hell". wikipedia