Megalithic complex Zorats-karer (also called Stonehenge is a famous prehistoric complex, located in the Republic of Armenia, Syunik Marz, Sisian, on the left Bank of the river gorge Gift. The total area of the megalithic complex is more than 7 ha.

This is the famous megalithic structure of Armenia consists of hundreds of vertically-meter stones – menhirs, having in the upper part of the through hole. The Armenians call it the "Armenian Stonehenge". Menhirs stretching from South to North.

Still unknown the age of this ancient monument. Scientists ' opinions on this issue differed. Some say that Stonehenge was built not later than the third Millennium BC, while others believe that the building was erected in the IV Millennium BC, and still others were of the view that the age of the complex is about 7500 years old. But regardless of age Zorats-karer impressive in its appearance: on the plateau, high mountains, rises 300 vertical megaliths. The stones placed in the shape of two rings. Located in the center of the ring contains 40 jewels, forming an ellipse.

There are several assumptions concerning religious or astronomical purposes of the monument. In his study consisted of four scientific expeditions, headed by prominent Armenian scientist - academician Paris Heruni. In the course of studying prehistoric monument have been identified, its size, geographic coordinates, topographic survey, numerous observations through the holes in the rocks during sunrise, sunset, during the fall and spring equinox, and winter and summer solstice.

After holding a large amount of computational work, scientists have come to believe that prehistoric structure had three purposes, namely: as the temple of Ara - God of ancient Armenians, as the University is a complex erected more than 7 500 years ago and operated for over 5,500 years, as an Observatory, equipped with a special stone tools that allowed us to perform measurements with an accuracy of 30 arc seconds.

But there is another theory about the meaning of Stonehenge as an ancient burial or necropolis.