Aluston fortress was built in the VI. on the orders of the Byzantine Emperor Justinian I. Aluston located 200 meters from the sea, on top of 44-meter hill. The line of fortifications Aluston was an irregularly shaped rectangle. At the junction of curtains were erected three towers: Ashagi Kul ("Lower Tower"), which is preserved in the city center to the present day, Orta-Kule ("High Tower") and completely destroyed Catal-Kul ("Horned Tower").

The wall thickness Aluston reached 2-3 meters and height - 9, 5 m. If you look closely at the stonework, then it is possible to notice the emptiness. They were wooden logs. They served not only the binder function but also served as a kind of shock absorber during earthquakes.

By the end of VII century. Aluston was abandoned by the Byzantines. In the X century, after the fall of the Khazar khanate, Aluston was destroyed, probably the Pechenegs. The beginning of his decline. But since the XII century., After the stabilization of the situation on the peninsula, Aluston experiencing a new heyday.

In 1381-1382 gg. Genoese bought from the Crimean Khan stretch of coast from Sudak to Balaklava, including Aluston (Lust). In the history of the fortress began a new phase. Alushta became a trading "Captaincy Gothia", its population rises to 1-1, 5 thousand. People. In the II half of the XV century. Aluston is built around a new line of defense with 3 towers on the northern and eastern flanks.

In June 1475 in the Italian possessions in the Crimea were attacked by the Turkish fleet. Aluston also attacked. Archaeological research has shown that the city was killed by fire, after which the castle Aluston is not restored.