The history of the Rosenkrantz Tower dates back to around 1270. The tower grew taller and taller over the centuries, to send warnings of fear to uninvited military guests and to make a political statement towards the Hanseatic League. The view from the tower is amazing. From the rooftop one can see the whole town, the harbour, the coastline and the islands off the coast of Bergen. In the basement of the Rosenkrantz Tower there is a dungeon. The people kept there did not have much else in view than torture or execution.

The little lookout post at Fredriksberg Fortress still stands. Little else gives testimony to the fact that the fortress also has played its part in protecting Bergen from devastating fires. When Bergen Fire Brigade was modernized after a big fire in 1901, Fredriksberg Fortress was turned into a small fire station and lookout post.