Luoto Church was built in between 1785 and 1789 by Jacob Rijf, the church builder from Pietarsaari. The nearby Marieholm manse dates back to the 19th century. There has been also one of the first post offices in Finland.
Luoto church environment is exceptionally well-preserved milieu in the Ostrobothnia area. It is defined as a national built heritage by National Board of Antiques.
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.