Victor van Werkhooven’s cartographical pet peeve: historical maps of Europe that include Flevoland, which didn’t even exist until the 20th century. (Polders. Dikes. Land reclamation. You get the idea.) It’s not often that the physical shape of the world—the coasts, the shorelines—has to be taken into account when creating a historical map, but this is one such case. [Mapfail]