Near the Ural Mountains in Russia, there is a prehistoric archaeological site that dates back to the 17th century BC. The site, popularly known as Arkhaim, is a huge circular settlement with a diameter of 150 cm. It has a central square area with two circular walls around which were living quarters. No one knows why the inhabitants burnt the whole place down and abandoned it as no human remains were found. It is also strange that no other construction could be found in its vicinity. People visiting Arkhaim also tend to feel sick and have reported mysterious light flashes in the sky.
Arkhaim
