Today’s Flickr Photo -
detail from Ionic column at the Temple of Apollo, Didyma, Turkey.
You can see how the column was fluted - the top drum and bottom drum were carved first, the flutes were then carved on the intervening ones. The temple took centuries to complete - Alexander the Great gave it an endowment in the 3rd BCE when he invaded Persia: so, too, did Caligula when he was emperor - some 300+ years later.