Designed by
Title
Fredriksten fortress (the large powderhouses) #27516695
Description
The building was the fortress's main ammunition storage and consists of a vaulted room with up to 3 meters thick walls, over this was the superior room for a gun battery, and over this again, it was built a wooden roof to protect the guns and the vault under the moisture, the roof was removed in wartime, powder tower was completed in 1666.