I've
been there. It's truly
astounding. There is even a
sundial that is carved from
coral, which always keeps
perfect time. I was
also impressed with
sheer mass of it all, but find it
hard to believe he didn't use
any powered machinery at all to
do it.
Some words of wisdom, though. Do not visit Coral Castle in the middle of the Summer. You will turn into fried bacon.