Here is what I think most would list as the seven architectural wonders (or at at least the most iconic sights) of Norway.
- Nidaros cathedral in Trondheim. An Gothic cathedral originally built between 1070–ca. 1300, although the facade seen here was largely reconstructed in the 19th and the early 20th century.
- Borgund stave church. Believe to have been built in the 12th century and have largely been preserved since. It is considered to be best preserved of Norways stave church have been used as a model for restorations of other lesser preserved specimen.
- Old Fredrikstad star fort. It was built in the years 1663 to 1666 although most of the individual buildings inside the fort dates from the 19th century. It is also claimed to be North Europes best preserved "fortress city" but I don't know how accurate that is.
- The Bryggen wooden old Hanseatic commercial district in Bergen. The Bryggen district was established in the 11th century, but fires ravaged the buildings through the years as was customary in Norway at the time. As a result only a quarter of the building stock dates back to the Hanseatic period of the city while the rest are of a younger age.
- Oslo city hall. Construction was started in 1931 and the building was largely completed by the outbreak of world war 2, but the finishing touches and the inauguration had to wait until 1950 du to a Nazi occupation issue we experienced at the time. The inside is decorated with frescoes depicting Norwegian folklore.
- Oslo opera house. It opened in 2008. Apparently it is supposed to look like an ice berg and people can walk on it.
- Kilden concert arena in Kristiansand. It opened in 2012. I'm not sure what it is supposed to look like but I know that the public can definitively not walk on this facade.