
As you may or may not know, the ancient Greek architecture of temples (and to some degree other buildings) come in three basic styles: Doric, Ionian, Corinthian. These are the three classical Greek orders of architecture.
These three basic building blocks have since then been adapted and re-used by the western culture a number of times. First by the Romans. They started copying the Greek orders and added two new ones them selves. Then, during the renaissance, the ancient orders experienced a... well, a renaissances. E.g. the Palazzo Chiericati by 16th century architect Andrea Palladio has both Doric and Ionian columns. Then there was the Greek revival of the late 18th, early 19th century (think: Brandenburger Tor). During the 1980ies there was time for a new dusting of of the old Greeks as the post modern movement started using and mixing different parts ("quoting") ancient architecture in new ways. The most well known example of this is probably Piazza d'Italia by Charles Moore.

I would like to frame all nine and hang them in a 3 by 3 matrix. But right now we don't have enough wall space for that, so it will have to wait.