Harput Castle is an architectural structure built by the Urartians on a rectangular plan. It is located in the historical Harput neighborhood within the current Elazığ provincial borders. The castle consists of two parts: inner and outer castle.
According to historical sources, Harput Castle was founded by the Urartian Kingdom in the 8th century BC. It came under the rule of the Persians from the 6th century BC.
Various legends are told about Harput Castle. According to a rumor, due to the scarcity of water experienced during the construction of the castle, milk was used instead of water in the preparation of the mortar upon the order of the ruler of the time, which is why the castle was called “Milk Castle”.
The repairs made during the Artuqid Period contributed greatly to the preservation of Harput Castle, which consists of two parts: the inner castle and the outer walls, as an original structure until today. The castle was later repaired during the Dulkadiroğulları, Akkoyunlu and Ottoman periods. The outer walls of the castle have been completely destroyed. The castle, built on steep rocks and very difficult to besieged, is a large neighborhood with a hospital, granary, mint, water cistern, ammunition depot, mosque and many civilian buildings.