Among its innumerable rooms, look out for the majestic new dining room; the study of Prince William IV with its Chinese-style ceiling; the library; or the rooms of William I (fine Empire chairs). In the apartment of Queen Mary II and King William III, the Queen’s private study, the principal room with garden views, and William III’s room (ebony furniture) are especially noteworthy. On the ground floor, don’t miss Queen Willhelmina’s room and study.