Auria, a mysterious land.
Auria is a 15k by 15k map, the project is open to new members who are willing to build. The map contains several islands with several biomes. Some of these vary from cold tundras to hot palm forests. Members are free to build anything they want there, these can vary too.
Auria is sort of a mix between an actual project, and a world for members to build in. But, Auria is massive and will end when the amount of structures are built.