St. Mary's Chapel is a chapel dating from the 12th century on the island of Wyre. Little is known about this chapel, which presumably was founded by Kolbein Hruga or his son Bjarni. The chapel consists of a rectangular room with the entrance to the chapel on a short side facing west. A smaller room, which is almost square in shape, is attached to the east side of the chapel. This area is only accessible from the first departure. The building is constructed entirely of stone.
Château de Niort is a medieval castle in the French town of Niort. It consists of two square towers, linked by a 15th-century building and dominates the Sèvre Niortaise valley.
The two donjons are the only remaining part of the castle. The castle was started by Henry II Plantagenet in the 12th century and completed by Richard the Lionheart. It was defended by a rectangular curtain wall and was damaged during the Wars of Religion. In the 18th century, the castle served as a prison.
The present keeps were the central point of a massive fortress. The southern keep is 28m tall, reinforced with turrets. The northern tower is slightly shorter at 23m. Both are flanked with circular turrets at the corners as well as semicircular buttresses. Each of the towers has a spiral staircase serving the upper floors. The Romanesque architecture is of a high quality with the dressed stones closely jointed.