Petroglyphs at the site, which are thought to be much older than the megalith circle itself, seem to depict aliens or humanoid figures. It has been suggested that Karhunj was some kind of travel hub or marker made for or by aliens that once lived and worked on Earth.
This would then be connected with the beliefs of the ancient Sumerians, who stated that their gods came from the skies, created man and at some point in time left Earth. Could they have described what actually happened at sites like Karahunj, even millennia earlier? These gods could have used the site.
Now if Karahunj was an ancient intergalactic travel hub or navigation centre, then what was Metsamor? It is another ancient site, not too far from Karhunj, located in the Ararat valley. It is a large site, with a 10 hectares citadel and surrounding settlements. Excavations at Metsamor started in the 1960s but are still ongoing. Based on the findings so far, it seems that the site was inhabited from the 7th millennium BC up to the late middle ages. Some 50,000 people lived there at the same time. It had some astronomical functions and an early form of writing has been found at the site.
However its main function seems to have been metallurgy. Protected by strong walls, there were smelting houses with furnaces, giving evidence of extraordinary knowledge of metal work. Many different metals were processed, including gold, copper, iron and mercury.
We could imagine that the travelling gods as described by the Sumerians would need a service station or production plant, providing them with materials to fix or power their spacecraft or stargates. Could Metsamor have been such a service station? How else could it develop such a sophisticated metal industry so early in time, and why?