| True area | On the old Mercator map | Distortion vs truth |
| Bosnia and Herzegovina | 51,690 km² | 100,279 km² | 1.9× |
| Greenland | 2,154,754 km² | 25,447,645 km² | 11.8× |
| Africa | 30,370,000 km² | — | 1× |
Old maps drew Bosnia and Herzegovina at about 100,279 km² km². The truth is 51,690 km² km² — a difference of 94%% that school atlases carried for centuries.