Located in Great Britain, this monument still raises many mysteries today. Why this monument was created? By whom? An unknown civilization? 
 For this, we selections many theories.
-Stonehenge, an astronomical observatory? Some scientists believe that this intriguing monument serves as an astral landmark (for the moon). This theory is supported by Hawkins. For him the stones are placed so as to predict astronomical events. 
 
-A religious place? Some people think that Stonehenge is a place where rituals such as sacrifices are made. But according to some researchers, it was also a festive place like dances
-An extraterrestrial colonization: Ahhhh my favorite and also the wackiest. The aliens. Paranormal fans were thinking of a message from the aliens. But this theory was quickly abandoned because we can not prove it. But who knows, perhaps, a first contact with these green men tomorrow!!!