3D print Iceland
A coastline that never sits still on a map, glacier-carved fjords, and a capital where nothing much is taller than a church spire. Iceland is unusually good material for this.
Iceland is the reason coastline reconstruction is its own problem to solve in Map2Mesh. OpenStreetMap doesn't store the sea as a filled shape — it stores the coastline as a line, and the water has to be rebuilt from it. Around Iceland's fjords and skerries, that line does a lot of work, and getting it to close cleanly into solid, printable land is most of the difficulty in modeling this island.
Away from the coast, the terrain does the rest: Iceland sits on the Mid-Atlantic Ridge, and the elevation data picks up the volcanic plateaus, the black-sand outwash plains, and the sudden rise of the highlands with no forest cover to blur any of it. Few places make relief printing look this good with the height multiplier left near its default.