Holland is a flat country. There are no mountains or rocks. But in the north of the country within a radius of only 30 kilometers, 53 megalithic monuments are scattered over a beautiful landscape. Granite skeletons of 5500 years old burial chambers. Where did these 20 ton boulders come from, how were they piled up and by whom and why..? What is the mystery behind these relics from the past..? If you want to know, take a visit!
