The Oslo Opera House is the national opera and ballet theatre of Norway, located in the capital city, Oslo. Opened in 2008, it features a striking modern design by the architectural firm Snøhetta, characterized by its sloping roof that allows visitors to walk up and enjoy panoramic views of the city and the fjord. The building is home to the Norwegian National Opera and Ballet, hosting a variety of performances throughout the year. Its interior boasts a stunning blend of wood and marble, creating a warm and inviting atmosphere for audiences. The Oslo Opera House has become a cultural landmark and a popular tourist destination.