What is the oldest building in Oslo?
Old Aker Church
The church sits on top of Telthusbakken and is located centrally in the borough of St. Hanshaugen.  It is surrounded by an old graveyard and a stone wall.  The church has a baroque pulpit and baptismal font from 1715. The tower is built in 1861. Most of the buildings in the area are from the 1880s, with the addition of some apartment blocks from the 1930s. Gustav Jensen was appointed a curate at the church in 1874. Knud Karl Krogh-Tonning was parish priest at the church from 1886 to 1900.[5][6]