10. Hitler And The Spear Of Destiny

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9. Beyond Area 51

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Northwest of Las Vegas lies a mysterious place known as Area 51. Although the US government denies its existence, Area 51 has become a part of pop culture, inspiring films, books and TV. "Unsolved History" explores the cloak of secrecy that surrounds this military base.

8. American P.I.: The Son of Sam Case

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In 1977, the NYPD arrested David Berkowitz for a string of shootings that terrorized New York City. "Unsolved History" examines the "Son of Sam" murders to find out whether Berkowitz acted alone or as part of a satanic cult.

7. American P.I.: The Case of O.J. Simpson

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"Unsolved History" pieces together forensic evidence from the 1994 murders of Nicole Brown Simpson and Ronald Goldman. Experts run experiments on the controversial clues and put the physical evidence from this unsolved double homicide to the test.

6. D.B. Cooper

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A Hollywood screenwriter couldn't have written a better script: In 1971, an unidentified air pirate nicknamed "D.B. Cooper" hijacked a Boeing 727, extorted $200,000 from the FBI, parachuted from the craft and was never seen again. With sophisticated forensic techniques, "Unsolved History" sheds new light on this dark night.

5. Ninjas

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"Unsolved History" explores the famous stealth and lethal skills of the ninja - the mysterious elite fighting force of feudal Japan. Experts unravel the myths surrounding these legendary mercenaries and lift the veil on the artistic, spiritual and secretive facets of their society.

4. Suicide Bombers

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The suicide truck bombing of US Marine Forces in Lebanon, in 1983, ushered in a new era of warfare and a new weapon. It was the precursor to the shocking terrorist attacks of September 11, 2001. Study the Beirut bombing as a microcosm of a current trend.

3. The Trojan Horse

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An ancient story tells us that a mighty Greek armada of a thousand ships sailed across the Mediterranean Sea to wage war on Troy. Bent on vengeance for the abduction of the beautiful Helen by the Trojan prince Paris, the Greeks lay siege to the great city.

2. Hunting Nazis

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After World War II, almost 30,000 war criminals escaped from Europe. Was Josef Mengele part of a Fourth Reich that was plotting to restore Nazi power? The truth is that Mengele, like many ex-Nazis, led a pathetic, animalistic existence after the war.

1. RFK Assasanation

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In 1968 as Senator Robert F. Kennedy left a political rally in a Los Angeles hotel, shots rang out leaving him mortally wounded. Who really fired the fatal shot that killed Senator Kennedy? Was it a lone gunman, a young Palestinian, named Sirhan Sirhan?