An American Aristocrat's Guide to Great Estates

Julie Montagu travels to the seat of the Duke of Argyll, site of fictional Duneagle Castle in the Christmas special of 'Downton Abbey'; it has a haunted bedroom.

Julie Montagu visits Floors Castle, Scotland's largest inhabited castle, goes on a fishing expedition and takes in "the sport of kings."

Julie Montagu visits the 450-year-old Holdenby House and the estate that was once the palace and prison of King Charles I.

Julie Montagu visits Boughton House, one of the most well-preserved 17th-century homes in the United Kingdom, and discovers it has surprising ties to her own family.

Julie Montagu visits a fellow American-born aristocrat in the Cotswolds to see how she turned Sudeley Castle into a popular visitor attraction and fairytale wedding venue.

Julie Montagu, Viscountess Hinchingbrooke, meets the family who have owned this magnificent Georgian house since the 18th century, and sees the challenge of maintaining it.