Colour-coded by minimum distance to a coastline, both for land *and* for ocean.

The military situation of Czechoslovakia during the Munich Agreement - Czechoslovakian military atlas (1965) (59th of this series)

Languages of Europe - updated [3500x2937]

Topographic map of South Africa (1967)

Irish railway network in a century

The Holy Roman Empire around the year 1000

Closed down passenger railways in Saxony, Germany

What about it?

source: https://de.wikipedia.org/wiki/Liste_der_stillgelegten_Eisenbahnstrecken_in_Sachsen

Presenting map of empty places.

Russian Occupation of Eastern Ukraine - 19th of July 2023

Topography of Chinese mainland

Presenting map of empty places.