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.
Posthuset (building)
The building was designed by Norwegian architect Rolf Christian Krognes and first constructed in 1975. It has 26 floors and at 111 meter in height, is the second tallest building in Oslo. In 2003, the building was thoroughly revamped: seven floors were added and the building was split in two towers. After the revamp, " Aftenposten" newspaper moved into the building.