This austere palace crowned by an 86m tower boasts numerous remarkable attractions, including its delightful 64ha gardens, the splendid white-and-gold rococo decor in its main hall, its superb art gallery with works by Titian, Van Dyck and Metsys, and its precious library housing numerous rare books and unique manuscripts. With such a wealth of interesting features, it's not surprising that the palace is now a UNESCO World Heritage Site.