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Originally posted by Biggie
As a person who works with stone on a regular basis, I can state that there is nothing unusual about this structure aside from the fact that we don't know how they put them into place. The blocks are limestone, a very soft stone. To create the intricate patterns all one would need is some sand (nowadays you can use sandpaper) to fine tune the joints between the rocks.
Originally posted by Byrd
Also, if you look at it, the joints are not THAT exact