This is my current world, took about 25-30 hours to make.
All interior is cobble stone (no stone or dirt will be found)
Survival non-hardcore, though I also play hardcore worlds.


Any advice on what to add, give me a shout
I do have a farm on the opposite side of the mnt.
I do have access to almost every resource. (with limitations)

I made an under water observatory
Anyone want me to make anything?

Hey! Your island is pretty cool!

Thats pretty badass, make the all seeing Eye

All of inside is cobble stones (highest points are nether rack for castle)
Some more inside pictures:

I am working on;
The way over the farm (1st picture of this post)
The Chicken coop
Castle
Side wall near cobble stone generator (thing sticking out of the water that has nether rack flames

You should get this mod
Links in the descriptions.

next thing you should do is pretty it up XD

Cobble is kind of ugly to look at if everything is made of it, like use some stone/wood etc..

It's made of about 4000-5000 cobble though o.o