I really, honestly hate to remove this question. However, I believe it is not allowed, based on our rules about poll-type questions.

If you are able to narrow the subject down to a region, a single culture, or a specific type of art/architecture; you may resubmit the edited question. (please do!)

Unfortunately, as it stands now, your question is too likely to result in lots of "bits-and-bobs" type answers that will not be up to the quality of the sub.