Not your everyday Lego project, to be sure. And yes, this is just as amazing as you might think. Hell is no less scary when done using blocks.
For the entire series, see: The nine circles of hell from Dante’s Inferno recreated in Lego by Mihai Mihu – Telegraph
It nicely highlights the sculptural aspect of Lego is only limited by the imagination of the builder-artist.
Smart People I Know 
This is wrong. The punishments depicted in the Lego scene are not consistent at all with Dante. This is wrong, very wrong. It misses the very essence of the Divine Commedy
I think the person who created this acknowledges that in the accompanying article. It is still not that wrong, and very interesting.