Ravelin and Fredrikstad Bridge

In the foreground a moat with water is visible, behind it are ravelin ramparts, and in the distance another attraction of these places the Fredrikstad Bridge across the Glomma River is seen. The bridge is large even for Norway, where there are many different bridges - its length is more than 800 meters, the main span is 198 meters, the height of the span is 39.5 meters. It was built in 1957 and listed as a 'Norwegian National Treasure'.