Each year, more than 1 million visitors flock to Biltmore Estate in Asheville, to tour its gorgeous gardens and cavernous halls. The house was built by George Vanderbilt between 1889-1895 and is the largest home ever to exist in America. George and his beloved bride, Edith, are a major part of the new book, "The Last Castle: The Epic Story of Love, Loss, and American Royalty In The Nation's Largest Home" by Denise Kiernan. Kiernan was interviewed by WNCW for this Friday Feature, presented Sept. 22, 2017.