Ristiina, Finland
3000 - 2500 BC
Enköping, Sweden
1700-500 BC
Offerdal, Sweden
7000 - 2000 BC
Torhamn, Sweden
1700-550 BC
Simrishamn, Sweden
2000 - 1700 BC
Tanum, Sweden
1800-1500 BC
Dundee, United Kingdom
500-800 AD
Rionansa, Spain
18000 BCE
Papasidero, Italy
17000 - 6400 BCE
Kristiansten Fortress was built to protect the city against attack from the east. Construction was finished in 1685. General Johan Caspar von Cicignon, who was chief inspector of kuks fortifications, was responsible for the new town plan of Trondheim after the great fire of 18 April 1681. He also made the plans for the construction of Kristiansten Fortress.
The fortress was built during the period from 1682 to 1684 and strengthened to a complete defence fortification in 1691 by building an advanced post Kristiandsands bastion in the east and in 1695 with the now vanished Møllenberg skanse by the river Nidelven. These fortifications were encircled by a continuous palisade and thereby connected to the fortified city. In 1750 the fortress was modernized with new bastions and casemates to protect against mortar artillery.