Stock Photo - Detail from the exterior of Blenheim Palace, in Oxfordshire, England. Blenheim Palace was the principal residence of the dukes of Marlborough. built between 1705 and circa 1722. Blenheim Palace was designated a UNESCO World Heritage Site in 1987

Stock Photo: Detail from the exterior of Blenheim Palace, in Oxfordshire, England. Blenheim Palace was the principal residence of the dukes of Marlborough.