The 14th-century Vozmediano Castle is located atop great hills on the border with Aragon. Throughout the structure you can see various construction styles from different periods; Roman surrounding walls, a Muslim watchtower and medieval walls with battlement hexes.
The castle is currently in ruins although it was made up of a double walled enclosure, the outer walls being strengthened on the most vulnerable corner by a great quadrangular tower where there was an access gate, and on the other corner, a circular tower that was built later on. Another quadrangular tower placed in the middle of the wall was used as an abutment, and the rest of the perimeter does not contain any more towers and is actually much thinner than the other walls. The inner enclosure still maintains the original keep and is currently being used as the village’s cemetery. “Marqués de Santillana” dedicates some verses to this area where the Queiles River’s source is located in the foothills of Mount Moncayo.
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.