This portal tomb is an exquisitely preserved prehistoric site. Its dolmen (or stone table) is huge, and surrounded by a natural pavement of stones. The tomb has been dated back 5,000 years. When it was excavated in the 1980s, the remains of 16 people were found, including a newborn baby. The greatest mystery remains how the gigantic stones were moved and lifted -- the capstone alone weighs 5 tons. You'll have no trouble finding this sight -- just look for all the tour buses. At times they literally block the road. What must the locals think?