Big castle that has no logical layout or function but is incredibly easy to get lost in.

Bonus, huge amounts of secret passages.

Winchester in the UK generated from LIDAR and Open Streetmap Data. https://www.facebook.com/magic.minecraft.map.maker/

Myself (raspirunner) and Crazy_Lord105 have recently finished make a new map called win or die. It is designed for 2 people where you battle it out in order to get to the end. You will need to use some logic, parkour, mining skills and searching skills to get there. Once you make it choose how the other player dies, in a spectacular fashion.

This is the map that I built in for my tutorial on how to build my version of Wilson's face.

You can find that video here:
http://youtu.be/qeZxyeqwrvk

En-Us: My world of my survival Let's Play, Episode 28
Pt-Br: Meu mundo survival da minha serie Let's Play, Episodio 28

Visite meu canal, e confira a serie! Clique Aki!

Go Inside The Wonka Factory! Enjoy The Download! :)

This was a project I worked on at a multiplayer server. It's not an exact replica because some parts were unknown and I tweaked some things here and there but I think I got most of the aspects of the 2005 movie. If you haven't seen it yet I recommend that you do because it really adds to the build if you can recognize the different rooms.
This build uses plenty of ice so a non ice melting mod is highly recommended, though not required.

Kiptokren/Kipper

Server hosted for friends and campers alike.
Finally got plugins working to max and everything is smooth and lag free.