One of the greatest of all Renaissance palaces, built between 1525 and 1535 by Federigo II Gonzaga, is the Mannerist masterpiece of artist-architect Giulio Romano, who created a pavilion where the strict rules of courtly behavior could be relaxed for libertine pastimes. Romano's purposeful breaks with classical tradition are lighthearted and unprecedented. For example, note the "slipping" triglyphs along the upper edge of the inside courtyard. Two highlights are the Camera di Amore e Psiche (Room of Cupid and Psyche) that depicts a wedding set among lounging nymphs, frolicking satyrs, and even a camel and an elephant; and the gasp-producing Camera dei Giganti (Room of the Giants) that shows Jupiter expelling the Titans from Mount Olympus. The scale of the work is overwhelming; the floor-to-ceiling work completely envelops the viewer. The room's rounded corners, and the river rock covering the original floor, were meant to make it seem cavelike. It is a "whisper chamber" in which words softly uttered in one corner can be heard in the opposite one. Note the graffiti from as far back as the 17th century.