Bern, the capital city of Switzerland, is built around a crook in the Aare River. It traces its origins back to the 12th century, with medieval architecture preserved in the Altstadt (Old Town). The Swiss Parliament and diplomats meet in the Neo-Renaissance Bundeshaus (Federal Palace). The Französische Kirche (French Church) and the nearby medieval tower known as the Zytglogge both date to the 13th century.
The original airfield was built in the early 20th century for the Imperial Japanese Army and was called Keton. It consisted of a 1200 m long concrete runway, gravel taxiways and about 20 equipped aircraft parking lots.