Bollnäs church was originally built in the 14th and 15th centuries. One opening is known to have taken place November 3, 1468, probably concerning the church tower. Later alterations include the addition of the north and south transepts, built in 1753-1755.
The church holds a larger collection of wooden medieval sculptures than any other parish church in the Nordic countries. Three of the altarpieces are major works of art from the late 15th century or early 16th century, including an altarpiece dedicated to Virgin Mary, made byHaaken Gulleson c. 1520. Also dating from late 15th century or early 16th century is the most valuable eucharistic chalice, with its paten (a small plate).
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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.