In the Middle Ages, the manor belonged to the Livonian Order and later to the state. The small archaic wooden main building with an Old Baltic design was constructed in 1738 and today houses a museum. Its stylish magnificent stables from the second half of the 19th century with a beautiful gate construction have been preserved. Tori manor is known of horse farm founded in 1854 by the Livonian Knighthood.
Reference: Estonian Manors
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.