Özet:

The Riva Castle was built near the break-in-point of the Riva Creek and the Black Sea, in the district of Riva in Beykoz, which is in the north of the Anatolian side of the Bosphorus. The castle was aimed to control the entrance and the exit of the enemy ships to the Riva Creek under the security objective of the Bosphorus and the coastline. The western gate opens into a small atrium, passing that comes the citadel of the castle. Mostly used material in the construction is stone. However, brick walls are also encountered. The Riva Castle is quite small sized and differs from the Eskihisar and Yoros Castles in terms of architectural structure and strategic location. The circular stone arches, cellars and large cesspools show similarities with the castles of 18th and 19th centuries in Istanbul. The existing castle has no characteristics with the one conquered in the 14th century by Yıldırım Bayezid. During the English invasion, the castle was destroyed and lost its strategic significance. Today the castle is a sightseeing place. It has been detected that the rock particles used in the plasters, mortars and the building stones were provided from Upper Cretaceous formation of old Garipçe.

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