New Upcoming Mega-build

[GeneralApathy]

If you want a challenge , try making a submarine.
A large diameter horizontal tube is more difficult to make.

The man's right; making a submarine is ridiculously hard (Creative is even ridiculous-draining that hull is going to be a bitch), but if you actually manage it, you'll be among the 20 or so people (Including me! :O) who actually managed to pull it off in an aesthetically cool manner.