Clandon Park near Guildford, is famous for its imposing Venetian Palladian architecture, impressive Marble Hall and intricate stucco ceilings. So it may come as a surprise that it was once used as a military hospital. Indeed, visitors to the property, which the National Trust has owned since 1956, can now see a First World War operating theatre, which has just been recreated within the building to mark the centenary of the outbreak of the Great War and the role that the estate played.