Underground City Challenge!

Ok, ive been looking through this forum, but i havnt seen many undergrond citys.
I'm picturing something like a big area with a lake in the middle and buildings in the cliffs, populated with dwarves Nways I'd jus like to see if anyone can make a nice underground city, IT IS a competition so standard rules apply, custom models allowed, etc... post some screenies and il check em out ;)

If u hav any questions then jus ask

umm... if it's not a competition then why is it in the challenge forum?

I guess he's just "challenging" us to make one.

It is now a true challenge! Lets see some cities!

Well since it's in this forum already, why not make it a challenge? It'd be fun to see at the very least.