Boxzy and stderr wrote:
The Danish Geodata Agency (Geodatastyrelsen), a part of The Danish Ministry of the Environment, has created a 1:1 model (English) of Denmark in Minecraft (English via Google Translate link) based on their publicly available data of Denmark, such as elevation models and data about roads and buildings. There is a YouTube video.
A coordinate system has been introduced so you can find your way around or locate and visit a specific place. From what I have read so far, it's not clear how you go from latitude and longitude to that coordinate system. It's 1TB of data, so I'm not going to download it just to try it out. If you're looking for places to visit, "The Little Mermaid" should be at 55.692867° N 12.599258° E and Kronborg Castle should be at 56.039036° N 12.621156° E.
Last year the UK had their own version. As much as I'd like to get my hands on a full-sized 3D map of somewhere, I can't see that Minecraft is ever going to be the best medium for it.
Please note that their Minecraft server is just a demo. It will shut down October 23, 2014. After that only smaller pieces of data will be available.
This is where the real action is at https://wiki.openstreetmap.org/wiki/3D [openstreetmap.org]
All the world, freely licensed for all time. And you can jump right in.