The Antikythera Mechanism (pics)
A new analysis of the Antikythera Mechanism, a clocklike machine consisting of more than 30 precise, hand-cut bronze gears, show it to be more advanced than previously thought — so much so that nothing comparable was built for another thousand years.
"This device is just extraordinary, the only thing of its kind," said study leader Mike Edmunds of Cardiff University in Wales. "The design is beautiful, the astronomy is exactly right … In terms of historical and scarcity value, I have to regard this mechanism as being more valuable than the Mona Lisa."
From MSNBC
Amazing how they could go from this:

to this:

