Geography of Dorset is the Blackmore Vale, a relatively low-lying area of clays and limestones of Jurassic age. The south-east of the county forms part of the Hampshire Basin, an asymmetric syncline covered in sands and gravels of Paleogene age. The main rivers in the county are the Stour, Frome and Piddle. The Stour is the county's largest river, although its source is in the neighbouring county of Wiltshire. The Frome and Piddle both lie wholly within the county. The whole of Dorset's coastline is designated part of the Jurassic Coast World Heritage Site, and contains examples of many different coastal landforms, reflecting
City of Vicenza and the Palladian Villas of the Veneto of Palladio's surviving villas lay outside the site. In 1996 the site was expanded. Its present name reflects the fact that it includes all the Palladian Villas of the Veneto. "City of Vicenza and the Palladian Villas of the Veneto" also has some examples of ecclesiastical architecture, including the relatively small church at Maser. There is another important group of urban buildings by Palladio in Venice, a city which also has World Heritage Site status. Venice has notable examples of ecclesiastical architecture by Palladio, including the Church of San Giorgio Maggiore. The World Heritage site includes the following villas: City