Digging starts on 'Europe's first pyramids' in Bosnia April 14, 2006 VISOKO, Bosnia-Herzegovina -- Excavation work started on Friday on what a Bosnian explorer claims to be Europe's first pyramids in an area north of Sarajevo. A team of experts started digging at the site of a 3.8-kilometer (2.3-mile) tunnel believed to lead to one of the two structures resembling pyramids, about 30 kilometers from the Bosnian capital. As residents of the nearby town of Visoko eagerly watched, digging also began on one of ten 20-by-50 meter (65-by-165 foot) wells on the lower slopes of a hill. Last year explorer...