11 kilometers from the current Indian city of Hyderabad, are the ruins of the ancient city of Golconda, who, in the XVI-XVII centuries was the capital of the Principality. The main building, which survived until our days, is the Central fortress, which was built to protect the city from attacks of the Mughals, and placed on a hill, at a height of 120 meters.

The original version of the fortress was built in the XII century during the reign of the Indian dynasty Kakatiya, but for three centuries was conquered several times, and 1507 came to power, the Islamic rulers of the Qutb Shahis, who restored the ruined citadel. But in 1687, after a nine-month siege, the fortress of Golconda was finally destroyed by Mughal Emperor Aurangazeb.

Fortunately, even now you can see all the past power of the citadel. It consists of four distinguishable parts, the length of the wall around which is about 10km. The total number is 87 bastions, they have a semicircular shape, and some even still standing and fighting tools.

On the territory of the fortress are all necessary for a life time of buildings: residential buildings, temples, both Hindu and Muslim, as well as stables and warehouses. In addition there were lots of decorative elements such as fountains and pools. The fortress has eight gates, guarded, and four lifting bridge.

On-site facilities wonderful acoustics, and even the sound of footsteps were heard at considerable distance. This effect was specially created to ensure greater safety of the Sultan's family.

Such precautions were also associated with the fact that at the time of Golconda was the center of the extraction and trade of diamonds. And such well-known all over the world the stones as the Kohinoor and the Hope at one time was kept in the fortress.