Trier Air Base - Credit: Wikimedia Commons
Trier Air Base, also known as Trier Euren Airfield, is a former military airfield located in the southwest of Trier, a city in Rhineland-Palatinate, Germany. It was established in 1910. During World War I it was used by the Deutsche Luftstreitkräfte as both a Zeppelin and military airfield. Later, it was used by the Air Service, United States Army, Deutsche Luftwaffe, the United States Army Air Forces, and NATO forces until being closed in 1977, when the airfield was converted into an industrial park. Read more on Wikipedia
Source: en.wikipedia.org