Working on a Minecraft importer for Dekko.co, I extended the cNBT library to manipulate worlds, and this is a huge sphere created to test the ability of my new functions to create large structures spanning several sections, chunks and regions.

black and whites world

This world I have created is my first survival map by myself. I had no help in building these wonderful creations. This map features a house with 3 floors, an outside porch, and 2 stalls/storage areas on top. Also, there is a barn with 2 stalls or it can be made into 1 big stall. In the barn you will find a ladder. Climb onto it and it leads to a loft. Inside the loft features a bed, chest, crafting table, and 2 furnaces. I suppose you could you this "bedroom" for guests if you choose to have more than 1 person play with you. Also in this map, I have created a farm including wheat, carrots,potatoes, and sugar cane. Take care of it, and you will not go hungry. As for the square dirt building,that is a mob spawner. You may choose to keep it there or not, but I keep it in there so I have easy access to string and bones. Finally, the mine is the cobblestone "tunnel" that you see the barn sitting it on. Its very easy to get around it. There is one way in and one way out.
Please enjoy what I have created. I am looking forward for your input and comments.