One very tall tower that is as tall as the old building height limit.

Every floor has something different , this is a 10 star hotel.

Half of tower was built on 1.6 and back then if you build something like this the villagers would freak out and glitch dude to the extreme height and extrema numbers or doors in a very little space. Some of those glitched villagers can still be found around the map.

The world is best used on 1.10 or higher.