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.
Bankplassen
When Norges Bank's headquarters were moved from Trondheim to Oslo, the Bank's new building at 4 Bankplassen was completed in 1906 after drawings by architect Ingvar Hjorth. On 1 September 1986, Norges Bank was moved to a new continuous block building with address at 2 Bankplassen, designed by architects Kjell Lund and Nils Slaatto. Several older apartment buildings were then integrated into the new building. Other well-known institutions on Bankplassen are the Engebret Cafè with address at 1 Bankplassen.