The Petit Trianon is a celebrated example of the transition from the Rococo style of the earlier part of the 18th century to the more sober and refined Neoclassical style of the 1760s and onward. Essentially an exercise on a cube, the Petit Trianon attracts interest by virtue of its four facades, each thoughtfully designed according to that part of the estate it would face. The Corinthian order predominates, with two freestanding and two engaged columns on the side of the formal French garden, and pilasters facing both the courtyard and the area once occupied by Louis XV's greenhouses.