The experts strongly dispute his claims. Mr Osmanagic, 46, says they are jealous. And at Visoko, an army of amateurs is busy digging up the hillsides to uncover traces of man-made structures that the Houston Bosnian insists date from a prehistoric cycle of civilisation rich in its sophistication and washed away "in the flood".
The locals love it. Farmers are turning fields into car parks. Coach tours are arriving from all over Bosnia and beyond. Cafes, bars, and hotels are doing booming business in what was a severely depressed Muslim town on the frontline of a war that ended 11 years ago.
"It's amazing, we've got 300 people here today. We've had more than 200,000 visiting in the last few months," said Haris Delibasic, a Visoko accountant who now spends most of his time at the "pyramids" site. "We thought these were just hills. Now we know they aren't."
Sure, don't even mention ArchaeoBlog. . . . .