Trajan's Column in Rome commemorates Emperor Trajan's victory over Dacian Wars in 155 bas relief scenes. This stop-motion video outlines the current theory on how the towering structure was built.

National Geographic put this animation together with director Hans Weise and art director Fernando G. Baptista. You can read more background on the column and the research on its construction at the magazine's website. This is a particularly neat way of presenting the history of Trajan's Column and explaining how it may have come together nearly 2,000 years ago.

[via Neatorama]