A few years ago I was interested in this thing I watched on some television program about world mysteries and the one part was about this old guy who
had built some sort of rock garden with huge boulders and no one could figure out how he had moved them. One of the features was a huge revolving
door-like boulder that you could push with your finger and it would rotate. Now I'm remembering it and interested in it again, but I can't find
exactly what I'm looking for on the web anywhere.
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