After 20 years seeking Cleopatra's tomb, archaeologist K. Martinez's search shifts to an underwater Mediterranean site. She's joined by Titanic finder Bob Ballard, Egyptian Navy and dive teams to explore the location.

Cast:Kathleen Martinez, Zahi Hawass, Robert D. Ballard, Salima Ikram,

Genre:Documentary, History,

country:United Kingdom, United States of America,

Production:National Geographic, Lion Television,