This build was first uploaded to us back when Minecraft was in it's alpha stage. One of the first major builds featured on Reddit and was truly a work of art. Still stands the test through multiple versions.
Below is a walk through of the world by Wasabiface and Mummabia and below that is a teaser video created by Mextremel himself.
THIS WORLD IS CURRENTLY BEING HOSTED ON THE MINECRAFT WORLD EXCHANGE SERVERS
SERVER IP: mcwex3.g.akliz.net
Come and take a walk through as this world is due to expire on the 31st March 2017