Downton Abbey

I am now into a British TV drama “Downton Abbey”. The story is set in a castle of an aristocratic family at the beginning of the 20th century. An existing historical castle has been used for the shooting. What’s more, it has used not only the outer appearance but also the interior. So that gorgeous dining room wasn’t an indoor set. I understand that the drama is also popular in the United States because it has beautiful landscapes, perfect performances, gorgeous costumes, great music, an interesting historical background and a surprising storyline.