Some mysteries may never be solved. Read about hijacker D.B. Cooper who jumped from an airplane into the night after stealing $200,000, celebrated pilot Amelia Earhart who disappeared on a flight around the world, Roanoke-the first English colony in America, which vanished without a trace and more!

The man in the iron mask -- The princes in the tower -- Princess Anastasia -- Flannan Isles Lighthouse -- Rongorongo -- Lost Colony of Roanoke -- B. Cooper -- Escape from Alcatraz -- The vanishing village -- Amelia Earhart -- Robin Hood -- Malaysia Airlines flight 370 -- Glossary.