Oslo Opera House is a landmark cultural building located in Bjørvika, Oslo, Norway. Opened in 2008, it was designed by the Norwegian architecture firm Snøhetta. Its distinctive sloping marble roof resembles a glacier rising from the Oslo Fjord and also serves as a public space where visitors can walk across the building. The building is home to the Norwegian National Opera & Ballet and features a modern combination of marble, glass, aluminum, and oak.