Comic artist Tyler Kirkham took website CBR behind the scenes of his home/workplace the other day. There were pencils, couches, posters, bookshelves and... oh, yeah, an enormous customised Skyrim-themed dungeon.
You'll have to scroll a fair way down in this gallery to hit the basement, but once you do, you'll know it. Just look for the objective marker.
NOTE: One of our readers pointed out that Kotaku has already posted about the basement mentioned in this story, back in October. That's correct! However, since then, new shots have been published in the original Bethesda forums thread where the photos originate from—hence the current post.