First uploaded project created on a private server. Spawn point was in the middle of the jungle which we eventually grew to despise. So I created a desert biosphere above it. All done survival mode with the exception of taking the screenshots. Construction in the sphere is still a work in progress. Access to the sphere strictly limited to nether portal.

Specs
-Sphere--50 block radius half stone half glass 37,122 blocks total.
-Torus--100 block major radius 10 block minor radius half stone half glass 32,732 blocks total

That is a lot of smelting.

Texture Pack--L.B. Photo Realism