An opulent chateau perched in the middle of a lake now stands dilapidated in the Loire Valley of France; experts investigate and uncover the remains of a festering palace whose owner was labeled a traitor by France's most notorious king. Stories: 1) Chateau de La Moche-Chandeniers, Les-Trois Moutiers, France; 2) Cappadocia, Turkey; 3) Wheatley Provident Hospital, Kansas City, Missouri; 4) Inishark, Galway, Ireland