The San Giovanni in Fiore Abbey date back to Joachim da Fiore's trip to La Sila in Calabria in 1188. Archaeological excavations have shown the presence of Joachim's first edifice, which was finished in 1198, in the Iure Vetere¬†locality. The construction of the abbey was approved by Queen¬†Constance of Hauteville¬†after a Joachim's visit in her court at¬†Palermo.
After Joachim's death in 1202, the first monastery and its annexed edifices were burned by a fire in 1214. The monks decided to abandon the location of¬†Iure Vetere, also due to its difficult climatic situation.
In 1215 a site not far from the previous one was chosen, near the¬†Neto river¬†valley. The new abbey was completed in 1230, in the¬†Romanesque style. In later centuries features were remodeled in different styles, including a¬†Baroque style¬†church interior.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.