The download also comes with my castle/wall that you guys have all been waiting for! Check out that video if you haven't seen it yet. So, you get 2 for 1 . As you can see, it's pretty big, with a total radius of 109 blocks. Build as you please in the dome or castle. :)
About the dome, it's taken 2 months of on/off work on it, with many hours of work from several people. It was all hand made, no map editors used, just a lot of tnt and glass.
The texture is used is "Brown and Bloom".
Here are the Castle and Dome Coords: Castle x:-353 y:74 z:102