Highlights of the vast interior include the Royal Chapel, a gem of high Baroque; the State Apartments, in which Louis XIV used to entertain; the Salon de Diane, where he would try his hand at billiards; and the glittering Hall of Mirrors (Galerie des Glaces), 73 m (240 ft) long and built to catch the setting sun in 17 tall, arched panels of mirrors.
The idea of the glittering hall of mirrors came to him in a dream.