Season 4
8 episodes · premiered Sep 3, 2007
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E1 Mummies of the Clouds
500 years before the Inca, a band of warriors called the Chachapoya built the greatest stone monument in the Americas. It's three times the size of Egypt's largest pyramid, yet they disappeared without a trace.
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E2 The Hunley: New Revelations
The Confederate Army, in an attempt to turn the tide of the Civil War, launched a new and daring weapon--a forty-foot submarine. The H.L. Hunley, armed with a primitive torpedo, destroyed a mighty Union warship, yet its crew never made it home.
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E3 Kings of the Stone Age
The giant stone heads of the Olmec have amazed and mystified archaeologists for more than 150 years.
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E4 Pirates: Terror in the Mediterranean
In a new expedition, Kara Cooney and Charles Ingram look for evidence of the Barbary Pirates at the bottom of the Mediterranean Sea.
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E5 God's Gold (1)
Join the search for golden artifacts from Jerusalem's Temple, stolen by the Romans 2,000 years ago.
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E6 God's Gold (2)
The search for the treasure of the Temple continues.
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E7 Timbuktu
For centuries, Europeans heard legends of a mythical city in the heart of the Sahara, the source of endless caravans of gold, but it took 500 years to find.
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E8 Angkor Wat: The Eighth Wonder
Travel deep into the heart of the Cambodian jungle to discover a magnificent stone temple that was built on a scale unparalleled in human history.