If you are into building magnificent structures this is a mod you should check out, it adds about a dozen styles of facade blocks that can be used to create ancient Greek/Roman looking builds. They also would work well for public buildings such a libraries, town halls, courthouses, etc.

Works with nodes from Baked Clay, Darkage, and Nether.

The nodes can be crafted in an included CNC node. It was added after the recording of the video.