has 1,800 employees with 1,300 of these located in Trondheim. The Air Force Academy of the Royal Norwegian Air Force is located at Kuhaugen in Trondheim. The Geological Survey of Norway is located at Lade in Trondheim and is a major geoscientific institution with 220 employees of which 70% are scientists. There are 11 high schools in the city. Trondheim katedralskole ("Trondheim Cathedral School") was founded in 1152 and is the oldest upper secondary school (gymnasium) in Norway, while Charlottenlund videregående skole is the largest in Sør-Trøndelag with its 1,100 students and 275 employees. Brundalen Skole, has big festivals each year, and is building out to increase space. Ila skole was founded in 1770 and is the oldest primary school in Trondheim. Media Adresseavisen is the largest regional newspaper and the oldest active newspaper in Norway, having been established in 1767. The two headquarters of the Norwegian Broadcasting Corporation (NRK) are located at Tyholt in Trondheim, and in Oslo. On 31 December 2019 the fully digital and local newspaper Nidaros was launched as a competitor to Adresseavisen. The student press of Trondheim features three types of media. Under Dusken is the student paper, Radio Revolt is the student radio, and Student-TV broadcasts videos online. Radio stations established in Trondheim include Trøndelag-focused opt-out feeds of NRK P1 and NRK P1+, local versions of NRK Trafikk and P5 Hits, Radio Trondheim, and Radio 247. Along with Norway's national radio stations, they can be listened to on DAB+ across most of Trøndelag, as well as on internet radio. Culture Visual arts The Trondheim Art Museum has Norway's third largest public art collection, mainly Norwegian art from the last 150 years. The boasts a large collection of decorative arts and design, including a great number of tapestries from the Norwegian tapestry artist Hannah Ryggen, as well as Norway's only permanent exhibibition of Japanese arts and crafts. Trøndelag senter for samtidskunst (, TSSK) was established in 1976. There are two artist-run spaces, , that was founded by students of the Trondheim Academy of Fine Art in 2002, and Babel, that was founded by Lademoen Kunstnerverksteder (, LKV) in 2006. Kunsthall Trondheim was inaugurated at its permanent premises on Kongens gate in October 2016. Stage The main regional theatre, Trøndelag Teater, is situated in Trondheim. Built in 1816, the theatre is the oldest theatre still in use in Scandinavia. The city also features an alternative theatre