I was watching some of the luge and skeleton races and was all "that doesn't look THAT hard..." but then I saw this point-of-view video from the Sochi luge track and realized I don't think I wanna try it as much as I thought I would the other day. 

That's not taken FROM the Olympics, unfortunately.. but it claims to be the track and that's good enough for me! Still nuts to put it in full screen and imagine you're doing it.