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.

Good point I had heard that there may have been a way of using some chemical to weaken the rock making it easy to carve or shape as well.

Anytime I see one of these posts I think of my childhood. Growing up in miami I visited the coral castle often. When I first heard the "aliens built the pyramids" theroy I was 9 or 10 yrs old and I thought that if people did not have proof that coral castle was built by 1 man working alone they would probably blame alens for that too. While its on a much smaller scale overall, some of the larger blocks were the same size as blocks used in the great pyramid of Giza. the difference is we KNOW when coral castle was built and who built it. My point is if 1 man working alone could build the coral castle then I see no reason why an entire society could not build the pyramids.

Saw a doco once that showed exactly how it was done and why. Nothing but mind numbing hour upon hour of pounding and bevelling with a rock. The interlocking shapes is earthquake proofing. An indigenous stone mason showed how it was done, whilst a kooky westerner tested his ancient laser beam theory using a big polished mirror... can you guess which technique was the successful one?

This post is full of common sense and critical thinking. It's nice to see.

Originally posted by Byrd
Also, if you look at it, the joints are not THAT exact

I noticed that some of the joints that one can not "fit a blade of grass in between" actually have grass growing out of them

Well we got Pyramids on mars to... hmm...
but thats another story. I believe they where built by humans.
infact they was built by humans why should a so adnvaced alien race begin carving like in the stone age again when we could do it?