Last night I was watching the 6th episode from Ancient Aliens - Aliens and Mysterious Mountains.
Do you know what was the most interesting fact and I really enjoy in that? They mention my country, Macedonia!
The place is call Taticev Kamen and it's one of the oldest observatory, nearly 4000 years old. According to the scientists, this place was some kind of Lunar Calendar that was build in that time so people can easy follow the moon and the sun.
If you have a chance to visit this place, don't miss it!