Ryazan's most famous site is probably the magnificent Dormition Cathedral. It was built between 1693 and 1699 by the architect Yakov Bukhvostov in the Naryshkin baroque style. In form it consists of a tall red brick structure decorated with carved white stone window frames and topped with five central domes.
Inside the cathedral has a towering iconostasis 27 metres in height which includes two miracle-working icons: the Our Lady of Murom Icon which dates from the 12th century and the Our Lady of Feodotievo which was discovered in the nearby village of Fedotievo in 1487. The cathedral is now the Summer Eparchial Cathedral of the Ryazan and Mikhailov Eparchy. It is only open in the summer.
References: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.