CBS News correspondent Charlie D'Agata got a tour of Highclere Castle in Newbury, the castle that is used as the set for Downton Abbey. The castle is a real home with 80 bedrooms: it's not a museum. But the family has a daunting challenge meeting the budget to keep up the property, so they give tours to the public and rent it out for the wildly popular show. It is a stunning property, but it is simply home to Fiona, Lady Carnarvon and her husband, the 8th Earl of Carnarvon.
Lady Carnarvon told CBS News how surprised she has been by the show's popularity. Take a look:
