LEGO builder Gideon 83 has produced this rather epic fantasy castle with a middle-eastern feel to it which he calls Sultan's Gate. There's a whole bunch of background to go with this creation too:
Located on top of the Great Escarpment in Kaliphlin, the town of Sultan's Gate guards the only scalable path up on top of the Escarpment for many miles. This section of the city wall is built upon the old walls of the great ancient city built in the times of the Sultan.
It's a really nice bit of design and I particularly love the texturing of the brickwork in the walls. So much more interesting that just flat bricks.
Source: Flickr - Sultan's Gate