This is a Nether style castle complete with a real world entrance surrounded by nether brick wall containing 4 lookout turrets, two "gates", two secret doors to the outside, and an underground path that is in a square formation under each of the turrets (you'll see the example in the pictures). Once you are inside the first enclosure enter through the stone brick structure in the middle and you will be led to a complex cave system with a nether entrance leading you to the ultimate creation...the Nether Fortress! Explore the fortress on your own...there aren't many rooms so it is easy to travel in (it's mainly for aesthetics)

Additional Notes

This is 100% my design and idea no copied structures.