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
Budaörs Airport Budaörs Airport Budaörs Airport (), is an airport located to the south-west of Budapest, Hungary. Now serving general aviation, it was once Hungary's only international airport. Until the opening of Budaörs, Budapest's main airport was Mátyásföld Airfield (), east of Budapest. This was a very small airfield, and a replacement was established at Budaörs, at the south-western limit of Budapest's city boundary. Half of the airfield is within the city boundary, and half in Budaörs, in Pest County. Planning for the airport started in 1935, and in 1936 design competitions for the terminal and main hangar were held. Construction started