Atlas Obscura has the story of Guatemala’s Mapa en Relieve, an exaggerated-relief 3D relief model of the country. The 1:10,000-scale horizontal, 1:2,000-scale vertical map is approximately 1,800 square metres in area and made of concrete. Built by Francisco Vela and put on display in 1905, the map includes present-day Belize as part of Guatemala, which claimed the British Honduras at that time. It kind of reminds me of British Columbia’s Challenger Map, only a half-century older and made of concrete rather than wood. [WMS]