Welcome to the Kingdom of Redstonia! Come and see all the redstone joys we have to offer, including the super-insane-complex fridge! Come today and stay forever!

How to install:
Mac- Go to username/library/applicationsupport/minecraft/saves. Then unzip the file you've downloaded and place the folder inside the saves folder.
Windows- Not sure, I think its like go to %/appdate/% or something like that. Basically it's like the mac version but a little different. You just need to find the saves folder and put the folder in there.