49. Mata Hari
Mata Hari, originally Margaretha Geertruida MacLeod, was a Dutch exotic dancer who worked as a spy in World War I. She was known to have seduced diplomats and military officers with her twirling hips and batted lashes. She managed to worm the secrets out of them with her trickery but was eventually caught by the French government and arrested for espionage. Despite being sentenced to death, she is one of the most famous female spies in history because she knew how to weaponize her looks for the good of her country.