[puzz]

Water 1m below the sea surface is drawn like 4m deep. Land 1m above the seal level is drawn like it is 2m high.

[glaberficken]

ok thanks for the explanation =)

but why? I guess to improve the "readability" of the map to the human eye?

[edit] Never mind: https://en.wikipedia.org/wiki/Vertical_exaggeration