One of the greatest mysteries of the 20th century involves the Russian Grand Duchess Anastasia Romanov. In 1917, at the height of the Bolshevik Revolution, Anastasia and her entire family --- including the Tsar, Tsarina and all her sisters --- were murdered by Bolshevik secret police.
Legend continues to surround this piece of Russian history that Anastasia may have escaped execution. Her body was placed in a mass grave with many others; years later, upon exhumation, it was proven that at least one of the Romanov girls was not among these bodies. Rumors included a pact between the Romanov family and the infamous "Mad Monk," Grigori Rasputin, who was revil