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When Yukinori Kawae explores the Great Pyramids at Giza, he isn’t after treasure or lost chambers—he’s looking for dimensions. For all that the pyramids have been dug, scanned, and photographed, the ...

Roig’s model found that using a single ramp would have been insufficient and would have required nearly half a century of ...

I have seen the lofty walls of Babylon and the Zeus statue by the Alpheios River. The Hanging Gardens and the colossus of the ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...