Air date: 2007-09-03

Runtime: 60 min

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.

Air date: 2007-09-10

Runtime: 60 min

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.

Air date: 2007-09-17

Runtime: 60 min

The giant stone heads of the Olmec have amazed and mystified archaeologists for more than 150 years.

Air date: 2007-09-24

Runtime: 60 min

In a new expedition, Kara Cooney and Charles Ingram look for evidence of the Barbary Pirates at the bottom of the Mediterranean Sea.

Air date: 2007-10-01

Runtime: 60 min

Join the search for golden artifacts from Jerusalem's Temple, stolen by the Romans 2,000 years ago.

Air date: 2007-10-15

Runtime: 60 min

The search for the treasure of the Temple continues.

Air date: 2007-10-22

Runtime: 60 min

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.

Air date: 2007-10-29

Runtime: 60 min

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.