Remember shortly after Diablo III was officially unveiled when fans were upset about how colorful the game looked?

Possibly as a response to those early criticisms, Blizzard hid Whimsyshire, a world full of smiley clouds, rainbows, and enemy unicorns, in the game. Fans (the ones who have been able to play) have discovered the level only a few days after Diablo III's Tuesday launch.