Blenheim Palace, near Oxford, stands in a romantic park created by the famous landscape gardener 'Capability' Brown. It was presented by the English nation to John Churchill, first Duke of Marlborough, in recognition of his victory in 1704 over French and Bavarian troops. Built between 1705 and 1722 and characterized by an eclectic style and a return to national roots, it is a perfect example of an 18th-century princely dwelling.

Źródło: World Heritage Convention
http://whc.unesco.org/en/list/425