What if the search for Cleopatra's final resting place has been a 2,000-year-long misdirection? While most have searched the royal city of Alexandria, Egypt, archaeologist and Nat Geo Explorer Dr. Kathleen Martínez pursued a different theory at a long-overlooked temple of Taposiris Magna. After finding a 4,300-foot tunnel leading to the sea, Kathleen and her team discovered what may be a crucial clue in the 2,000-year-old mystery: a sunken port in the depths of the Mediterranean Sea, suggesting the location was more than just a religious site—it was also an important maritime trading hub. Could this clue help solve the mystery? Learn more about the discovery at the link in bio. #CleopatrasFinalSecret premieres Thursday, September 25 at 10/9c on National Geographic. Streaming on DisneyPlus and hulu. Photographs 1 and 4 by Kenneth Garrett (kennethgarrettphoto) Photograph 2 from National Geographic Graphic by Dr. Kathleen Martínez (drkathleenmartinez)