Old Aker Church
Old Aker Church was built as a three-naved Romanesque style basilica and constructed from limestone. It is believed to have been erected by King Olav Kyrre in 1080 as a church for all of Vingulmark, the historic area surrounding Oslo. The grounds of Old Aker Church were originally likely the former site of the regional thing during the pre-Christian period.
Hieronymus Heyerdahl (1867–1959)
He served on the City Council 1911-19 and 1923-25 and as mayor of Oslo from 1911 to 1914. At the end of his term in office, he developed the plans to build a new Oslo City Hall ("Oslo rådhus"). Heyerdahl launched the fundraising campaign for a new Oslo City Hall in 1914. Construction started during September 1931 and officially the facility opened in May 1950.