Trajan's column, is a Roman triumphal column that commemorates Roman emperor Trajan's victory in the Dacian Wars. It is considered to be the masterpiece of Roman sculptural art. It was dedicated to Trajan by Hadrian. (isn't it gorgeous? I could live in Rome)
Graphic History of Architecture by John Mansbridge. "Pillars and wall cornings were prime structural elements which were given amazing ornamentation. It sets the tone and mood before entering a building"