A "Chunk" in Minecraft is 16x16x256 blocks. Based on a 32x32 baseplate this build is actually 16x16 blocks. The height however would not be possible to replicate since it would be too high. You do not want a tower like that to fall over a bunch of kids at an exhibition. :)
This is not based on the latest version of the game sinca a lot of the newer blocks are absent. However most of the classic features are there and it´s basically one big playset, like the 10188 Death Star of Minecraft. It is possible for the figures to move from bottom to top through caves, ladders and stairs.
Some designs are Lego´s official from the sets, but the ones I was not happy with or didn´t existed I designed new items. Like the chests for example. Lego´s chest´s are excellent for play, but not for display.
More pics in my flickr.
mcc012 by mordatre, on Flickr
mcc02 by mordatre, on Flickr
mcc01 by mordatre, on Flickr
mcc06 by mordatre, on Flickr
mcc03 by mordatre, on Flickr
mcc09 by mordatre, on Flickr
mcc04 by mordatre, on Flickr