Kjetil Nordin, a skilled programmer and skydiving champion from Norway, spent over 800-hours in the span of 6-years to crochet the amazing Super Mario Bros. 3 World 1 rug you see above. Not just any simple map, Nordin researched the exact yarn colors needed to emulate the map (Super Mario All-Stars version). He went as far as re-crocheting an entire section when the water had a slight purple tinge rather than blue.
http://www.reddit.com/user/AlexKingshill