The Grosse Cloche is one of the oldest belfries in France, in the heart of Bordeaux. It was built in the 8th century AD to the site of ancient Gallo-Roman gate and restored in the 15-16th centuries. The bell was cast in 1775 and weighs than 7,750 kilos. The bell was used to inform and alert citizens. It is the symbol of Bordeaux and still in the city coat of arms.
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.