T-in-O map

http://www.newberry.org/smith/exhibits/popcart/occidental.html
This shows a T-in-O map. T-in-O or Beatline maps are medieval mapmaking. This shows a very simple map, with North-East-South-West bearings, and the continents of Africa, Asia, and Europe.

This T-in-O map shows a more complex, modernized version. This map has 3-D qualities using isolines to depict landscape elevation of mountain ranges.