Wikipedia
Tonsenhagen
Tonsenhagen is a neighborhood in the borough of Bjerke in northeast Oslo, Norway. Built in the 1950s, it was one of the early new suburbs within Oslo.
The neighborhood is situated on a hillside overlooking Oslo, surrounded by forest and near the ski resort of Grefsenkollen. There is a local school, for which the first headmaster was Rolf Ridar, and the Norwegian children's play and book writer Ingebrigt Davik was once a teacher there.