Oslo Cathedral was consecrated in 1697 and extensively restored in 1850. During the rebuilding, architect Alexis de Chateauneuf specified the addition of this bronze clock tower designed in Neogothic style. Inside the church you will find a 1748 altar, an exquisite painted ceiling, stained-glass windows by Emanuel Vigeland, bronze doors by Dagfin Werenskiold and an 18th century, five-story organ.