5000Wonders' Man-Made Landmarks 501-600

This list is drawn from the landmarks placed in positions 501 to 600 on the list at 5000wonders.com, a 'wisdom of the crowds' approach to determining the world's greatest man-made wonders.Thanks to everyone who has completed the five previous list challenges. It's interesting to see the average score dropping as the wonders become less well known and more geographically dispersed!I'd be really interested to hear from people. What are you surprised at? What's missing so far? And, what would your own top wonder lists look like?