The coral wreath post today has absolutely nothing to do with dry stone walling, but interestingly enough I've discovered they do build walls out of coral in several parts of the world.
My friend Mikelos came back from Bermuda and showed me some photos he took of some very cool dry coral walls there. Apparently they are everywhere. They don't use stone at all to build walls. There isn't enough stone but there is so much coral there and it seems to be just as durable and shapable as stone.
Wouldn't it be nice to go on a trip and see coral walls like these somewhere - maybe go this time of year and experience a balmy Christmas in Bermuda perhaps?