By goat1984

https://www.planetminecraft.com/project/lost-island-4-000x2-000-lost-island-terraforming-contest/

By LeafySeaRabbit

https://www.planetminecraft.com/project/feidlimid---16k-x-14k-custom-terrainworldpainter-400-subs-2-year-anniversery/

By Veylyn

https://www.planetminecraft.com/project/tarenthal--massive-12k-x-12k-continent/

"The ancient land of Tarenthal was once peaceful and prosperous, but a long war with the Shadows has left the once lively land torn by war and death. Forests lay burned to the ground, once lively grasslands lay dying and desolate, and the few healthy lands remaining are slowly being drained of their own rich life.

This is a large 12k X 12k map with a wide variety of biomes and custom objects. Must be played in 1.7, Conquest is the recommended texture pack. This map was created using World Machine and Worldpainter, and is part of a much larger project. The entire process took about 60 hours of work. "

By Sirsiko

https://www.planetminecraft.com/project/ultimate-world-of-naruto-read-description-en-lire-la-description-fr/

By USMC

https://www.planetminecraft.com/project/usmcs-westros/

By Darastlix

https://www.planetminecraft.com/member/darastlix/

By Darastlix

https://www.planetminecraft.com/project/alerak---power-of-nature-8000-x-8000-special-multiple-biomes-survival-map/

Unsure who made this, the map has been around for a while and I believe the project it was linked to is now long dead. Still amazing.