Two thousand years after the Kizilburun shipwreck, excavating archaeologists have figured out exactly where it came from, where it was headed, and why. Sometime between 100 B.C.E and 25 B.C.E., a wooden ship carrying almost 60 tonnes of stone foundered in Aegean waters just off the coast of Turkey. It went down bearing its entire cargo, including eight massive drum-shaped blocks of white marble. Those blocks fit together to form part of a tapering column that likely stood more than 11 meters tall, plus a square uppermost piece: a Doric column.