Saints Peter and Paul Church is a historic brick, Gothic minor basilica. Formerly, the basilica belonged to the Sovereign Military Order of Malta. Since 2002, the church serves as a minor basilica. It is the most prized heritage site of the town and is one of the largest churches in Lower Silesia (with a length of the nave at 76 metres, height of 26 m and a main building width of 26 m). An example of Lower Silesian and Polish Gothic architecture. the church is enriched with artisanal handicraft , mainly from the fourteenth and fifteenth-century.References:
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.