Author's Note: This is the entire game of Myst, full on with all of its puzzles and portals to other worlds with their own puzzles. No mods or anything, just straight up redstone and nether-gates here. If you want to download and play the map, go here http://www.minecraftforum.net/topic/247744-puzmyst-craft-v73-tex-includes-ages-3000-dls/
It does have a custom texture pack that needs to be used or certain areas will look weird, but all the blocks are still normal minecraft blocks.