I thought building a nether in the real world was a good idea, so I started building.
When you don't login an annoying message is displayed in the left corner and doesn't go away. I started by building a giant shaft that would take me from my sky bridge to the underground.
I used signs to keep water up. The water saves your life when you jump from a giant shaft.
Where the nether portal will go.
The beginnings of the nether in the real world.
I havent finished building the nether but it should be finished soon. If you haven't already seen this video you should watch it. It is made by Ethoslab who creates elaborate inventions in minecraft. You can also download his world.