http://focus.nps.gov/pdfhost/docs/NHLS/Text/94001191.pdf

The Lanier Mansion is a masterpiece of classical proportion. The river or formal front with its two-story portico is spectacular. Although the style is Classical with overtones inspired by the Greeks, much of architect Francis Costigan's refinement is original. From the anthemion carving (a Greek honeysuckle motif) centered on the parapet and topping a large wrap-around entablature supported by four columns on the portico down to the delicate wrought iron railings on the terrace the elements of style are arranged in perfect symmetry. These slender, thirty-foot fluted columns are topped with capitals that might be called "composite" (a mix of Greek and Roman)