This giant stone slab might be the oldest known 3D map in Europe It was stored for decades but researchers found it in a cellar in 2014 It’s not exactly 3D printing, but it’s just as amazing — if not more. First unearthed in France in 1900, a Bronze Age stone slab has been recently rediscovered by a group of researchers, who now believe it could be the oldest three-dimensional map in Europe. In their study, they determined that the markings were carved 4,000 years ago, representing an area in Western Brittany, France. Image courtesy of the researchers . The intricately carved Saint-Bélec slab was found during digs on a prehistoric burial ground in Finistère by local archaeologist Paul du Chatellier. It is believed to date from the early Bronze Age, sometime between 1900 BC and 1650 BC. Following the finding, the slab was apparently forgotten for over a century, stored for decades at Chatellier’s home.