Federal-period buildings are characterized by overall symmetry and the lightness and classical nature of their decorative details. The entranceway, considered the signature of a stand-alone Federal building, is generally located on the long elevation of the house, which faces the road, rather than the gable end. Entries often contain six-panel doors flanked by leaded sidelights, surmounted by a semicircular or elliptical fanlight. Cornices may be decorated with swags, dentils, and modillions, more finely detailed than their high-style Georgian predecessors, utilizing Roman classicism made popular by the Adam brothers in England. Windows often incorporate molded entablatures.