The Arctic and Antarctic were the last regions on earth to be understood by explorers and mapmakers. So it is not surprising that many 16th century world maps include odd continents in place of the Antarctic. This map of the Southern Continent was made in northern France in the late 1500s. The continent is in fact completely made-up and yet is incredibly detailed. The mapmakers have included authentic looking place names and a realistically jagged coastline; strange sea creatures swim around ships in the ocean, while the land itself is covered in exotic plants, trees and animals. You may even find a unicorn skipping over the hills!