Both maps below show Monaco highlighted. The old Mercator map (1569) inflates Monaco about 1.9× at 44°, and the new Equal Earth map shows it at its true 2 km². Pan or zoom either map and the other follows, so the difference is visible at every scale.
That 1.9× inflation is why Monaco dominated old schoolbook maps and maps of the world's great powers. Hover Monaco on either map to highlight it on both at once, then compare it with Greenland.
Monaco: key figures
| True area | On the old Mercator map | Distortion vs truth |
|---|
| Monaco | 2 km² | 4 km² | 1.9× |
| Greenland | 2,166,086 km² | 25,576,494 km² | 11.8× |
| Africa | 30,370,000 km² | n/a | n/a |
Old maps drew Monaco at about 4 km². The truth is 2 km², a difference of 92% that school atlases carried for centuries.