Bosnia and Herzegovina
Visoko
August 2010 • Visoko used to be known for leathermaking, but now it's an international mecca due to the peculiar shape of its hillsides. Semir Osmanagich says it's more than just coincidence that they're shaped like pyramids—he believes a vast network of ancient man-made structures and tunnels lies buried beneath the topsoil. If he's right, the Bosnian Valley of the Pyramids is more advanced and more fantastic than anything built by the Egyptians or Mayans. Many professional archaeologists and geologists scoff at the notion, but Dr. Semir and a small army of volunteers keep digging for proof. Most Bosnians believe they're on to something.