In 1943, Danish farmer Søren Poulsen was working on the drainage of his land when he found a stone shaped like Jutland. That stone inspired him to create a small world of his own. During the winter months he placed big stones carefully on the ice and when spring arrived they could easily be tilted into place, and slowly (over the course of 25 years) he ultimately created what is now the World Map at Lake Klejtrup. This miniature world map is walkable, built of soil, stones, and grass, and covers about 1 acre of land along the elake. It is located near the village of Klejtrup, Viborg Municipality, Denmark.