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Khan Academy
Khan Academy: Ancient Greece: Caryatid and Column From the Erechtheum
This video [4:23] discusses the Caryatid (South Porch) and Ionic Column (North Porch), Erechtheum on the Acropolis, Athens, marble, 421-407 B.C.E., Classical Period (British Museum, London); Mnesicles may have been the architect....