Riddles of the Sphinx

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Recent Episodes

Hagia Sophia: Istanbul's Ancient Mystery

Hagia Sophia: Istanbul's Ancient Mystery

NOVA

Examine Hagia Sophia’s seismic secrets, which have insured its survival through a dozen earthquakes.

Petra: Lost City of Stone

Petra: Lost City of Stone

NOVA

Follow an archaeologist and sculptors to learn how the people of Petra built their city of stone.

Colosseum: Roman Death Trap

Colosseum: Roman Death Trap

NOVA

Watch a team re-create a lifting machine and trap-door system to release a wolf into the Colosseum.

Sinkholes: Buried Alive

Sinkholes: Buried Alive

NOVA

Sinkholes are examined. The collapses can be gradual.

60 min.

Sunken Ship Rescue

Sunken Ship Rescue

NOVA

Follow the epic operation to secure, raise, and salvage the Costa Concordia cruise ship

60 min.

Big Bang Machine

Big Bang Machine

NOVA

Watch as CERN scientists prepare to restart the history-making Large Hadron Collider.

60 min.

Schedule

Friday
2/27/15 8:00 AM
WGBH World
Friday
2/27/15 2:00 PM
WGBH World
Saturday
2/28/15 3:00 AM
WGBH 2
Sunday
3/1/15 1:00 AM
WGBX 44
Hagia Sophia: Istanbul's Ancient Mystery Hagia Sophia: Istanbul's Ancient Mystery Hagia Sophia: Istanbul's Ancient Mystery Hagia Sophia: Istanbul's Ancient Mystery

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Related Content

For 45 centuries, the Great Sphinx has cast its enigmatic gaze over Egypts Giza plateau. This strange half-human, half-lion image has inspired countless fantastic theories about its origins. Nova's expert team of archeologists, including Mark Lehner (director, Ancient Egypt Research Associates), carries out eye-opening experiments that reveal the techniques and incredible labor that was invested in the carving of this gigantic sculpture.

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