Trinity Church

The church was consecrated on 24 August 1856 and converted into a cathedral when the Catholic Diocese of Oslo was founded in 1953. It is the second Catholic cathedral in Oslo (the cathedral of Saint Hallvard became Protestant at the Reformation in 1537).

Oslo Cathedral was consecrated in 1697 and was then called Our Saviour's Church. Built of stone mixed with brick, it is a cruciform church with a chancel in the east and a bell tower in front of the western cross arm. The tower was raised in 1850. In 1937 some of the neo-Gothic elements added in the 19th century were removed from the church hall, including the ceiling ribs, and Hugo Lous Mohr painted the distinctive ceiling pictures that can be found in the church today. As a "national church", it is used by the royal family and the state for official purposes.

The Kulturkirken Jakob was designed by the architect Georg Andreas Bull and built in 1880. The church was desecrated in 1985, and a year after its closure, to prevent its destruction, the Kirkelig Kulturverksted company began a long-term collaboration with the church council in Oslo with the aim of making the church a cultural venue. Today, the church is the only church in Norway with a purely cultural purpose. The church is a venue for theatre, dance and other various forms of events.