Tegel the end of 1948. Tegel is chiefly known for being the location of Berlin-Tegel "Otto Lilienthal", Berlin's main airport. It also houses the Tegel Penitentiary, Germany's largest prison with about 1,700 inmates as of 2007, known from Alfred Döblin's 1929 novel Berlin Alexanderplatz. One of Berlin's largest shopping malls "Borsighallen" is located in the former locomotive manufacturing halls of the "Borsigwerke". There is also the "Villa Borsig" at the shore of Lake Tegel, the former residence of the Borsig family. Today it is a school for future diplomats. Beside this Tegel is an extensive residential district with some industry. With
Kalispell City Airport 25, 2005, the airport had 41,400 aircraft operations, an average of 113 per day: 80% general aviation, 16% air taxi, and 5% military. At that time there were 68 aircraft based at this airport: 82% single-engine, 6% multi-engine, 10% helicopter and 2% ultralight. Kalispell City Airport Kalispell City Airport is a city-owned public-use airport located one nautical mile (1.85 km) south of the central business district of Kalispell, a city in Flathead County, Montana, United States. This airport is included in the FAA's National Plan of Integrated Airport Systems for 2009–2013, which categorized it as a "general aviation" facility. Kalispell