The real Mines of Moria

I have recently returned from a holiday in the wonderful city of Krakow, Poland - well worth a visit if you ever get the chance. One of the things we did while there was to visit the salt mines of Wieliczka. As usual when sightseeing, I slipped into nerdy mode and explained to my wife (in my best Gimli voice) that we would soon be treated to a "right royal welcome by my cousin Balin" as we