Just something I decided to make. Got a few ideas from Lord Of The Rings and now it turned into this. I have added a staircase up the middle and began a room at the bottom but that's it. There is some water around it because I built it in a river and there is a lava moat and a bridge to the mainland.

You might want edit it a bit (eg: the surrounding area) because I built it in a slightly awkward place for a schematic.