Park Ravne 2

The Bosnian pyramid complex is a pseudoarchaeological notion to explain the formation of a cluster of natural hills in the area of Visoko in central Bosnia and Herzegovina. Since 2005, Semir Osmanagić, a Bosnian-American businessman based in Houston, Texas, has claimed that these hills are the largest human-made ancient pyramids on Earth. His claims have been overwhelmingly refuted by scientists but he has proceeded to promote the area as a tourist attraction.Direct study of the site by geologists, archaeologists, and other scientists have demonstrated that the hills are natural formations known as flatirons, and that there is no evidence that they were shaped by human construction.

Source: Wikipedia