Yea, OK previous posters, Stonehenge isn't as impressive as say Machu Pichu and certainly not the Pyramids, but remember there's supposed to be seven of them (no, not the Pyramids) We know and understand the reason why and wherefore of the Easter Island ediffices all truely amazing yes, but if I was to pick seven wonders of the world I'd have to include Stonehenge! Somewhere towards number seven admitedly, with the Pyramids at number one.
Sydney Operahouse? W.T.F. Where does that come into the seven wonders of the world? They could build a replica on the other side of the harbour if the fancy took them. Yea O.K. then I'll admit, we'd have the worlds most fabulous bookends or something.