Giant ocean fortress , build to extract precious metals from magma in the earth's weaken crust. Also made with elevator , canons and farm. It is also used for manufacturing certain parts of various machines (In this model it includes mech arm).

This is a second project in my Empire project. I will try to make new soon.

PS:Thanks MorezysMinecraft for the Mini-Elevator Tutorial. (It sometimes don't work, my bad, sorry).