The burial tomb of Cleopatra
Cleopatra VII was the last of a series of rulers called the Ptolemies who ruled Egypt between 305 and 30 B.C. Much is known about her intelligence, beauty and romantic relationships (she had children with both Julius Caesar and Mark Antony), but one fact about Cleopatra is still shrouded in mystery — her burial place.
Cleopatra and Antony both committed suicide after their former ally, Octavian, defeated them at the Battle of Actium in 31 B.C. The two were buried together at a site that the writer Plutarch (A.D. 45-120) described as a "lofty and beautiful" monument, located near a temple of the Egyptian goddess Isis. But exactly where this tomb is located remains a mystery. If anyone ever finds the lovers' tomb, there's a chance it might be empty, as grave robbery was not uncommon in ancient times, according to archaeologists.