Includes any manifestation of the material culture of classical Greece and Rome. With reference to the period of late 18th- and 19th-century art and architecture which featured a return to classical principles, use "Neoclassical." With reference to the period of architecture and ornament of the late 18th- to early 20th-century based relatively closely on ancient classical forms, use "Classical Revival."

Source: Art & Architecture Thesaurus

http://vocab.getty.edu/page/aat/300056513