There are a few beautiful shots that look very like the north coast of Skyrim in this program - those featuring the Aurora Borealis will look especially familiar to those running Climates of Tamriel/RealVision etc. I know a lot of you can't get BBC iPlayer, sorry about that.

http://www.bbc.co.uk/iplayer/episode/b03pzv9m/Icebound_The_Greatest_Dog_Story_Ever_Told/

I remember seeing a thread from a RL cave that looked like Blackreach, blue glowing rocks and such.