Fredriksten Fortress, constructed mainly in 1661-1701 and completed in 1905, is an imposing structure with a total wall surface of 2.000 m2. After 1905 the fortress lost all military significance, but it still hosts several museums and art exhibitions. During the summer season outdoor concerts are arranged with both classic and contemporary music. Visiting the fortress is rather popular as its very scenic with old buildings and the fortress` location on the cliff above the small city adds to its beauty.
