No other words than I find them fun.

There is plenty of maps already on the site. They are listed under the Minecraft series, you just need to play with the filters a touch.

http://www.speedrun.com/minecraft Along the left hand side are the filter settings - Drop all the way to the bottom for "GAME TYPE" and check both boxes, and click the "AND" switch so that it says "OR" and that should show all the options (43 options, not including PC/Console edition)