I find these places fascinating, what the ingenuity a hard work of human beings can achieve.
I went down a salt mine in Salzburg a little while ago which was awesome. There was a lake down there which we went across in a little boat and other cool stuff like a wooden slide which one straddles and slides down to get to the lower levels.
Anyway, it sure looks like you had a good day!
Totally agree. It really is impressive - the things humans did. Going to museums like this always reminds me (not that I need a reminder but it doesn't hurt) of how well off we are these days, despite the hardships of many today, living a hundred years ago was so much harder.
An underground lake that you boat on must be amazing! Though I have to admit that I am not one for tight spaces and probably would have chickened out if the tour had gone down into Mother Earth.
I am glad that we still have museums, as in information not-computerized, and volunteers to keep history alive. It is so much more vivid if you actually see and feel how people used to live. I love going to open-air living history museums.
It surely is, humans have done some incredibly amazing things for good and bad unfortunately. It's great that we get to experience some through places like you visited and that the past is still represented.