The Topana fortress is located near to the mountain slopes of Modro jezero (Blue lake) and dominates over the town. The fortress was built in the 10th century and throughout history had a great strategic significance. The patron of the Imotski border- land is Our Lady of the Angels, and a small church of the same name is located in the fortress' surroundings. The fortress was under Ottoman rule for over 200 years. Today, this fortress is a favourite place thanks to the extraordinarypanoramic view, and many cultural events are held here during 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.