1. The Lost Secrets of Petra

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. 5 November 2014. 44 min

Petra was the capital of the Nabataean kingdom - do riches lie undetected in its hidden tombs? Find out as Jamie Theakston decodes this historical riddle.

2. The Holy Grail

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. 12 November 2014. 44 min

Can Jamie Theakston solve history's most enduring mystery? Visiting Glastonbury, Wales, Valencia and NYC, he inspects four goblets that could be the Holy Grail itself.

3. The Illuminati

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. 19 November 2014. 44 min

Jamie Theakston sheds light on the ultra-secretive Rosicrucian Order, whose members included Leonardo Da Vinci and Isaac Newton. Are they the real-life 'illuminati'?

4. The Oracles

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. 26 November 2014. 44 min

Jamie Theakston journeys to Greece and Italy to hear the truth about oracles. These mysterious figures - such as the one at Delphi - reputedly spoke the word of the gods.

5. Top Secret Nazi UFOs

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. 3 December 2014. 44 min

Jamie Theakston investigates the curious claim that the Nazis started to build flying saucers during WWII. Hear the startling truth behind a historical legend.

6. The Genius of Nikola Tesla

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. 10 December 2014. 44 min

Jamie Theakston brings to light the life and work of enigmatic inventor Nikola Tesla. Conspiracy theorists believe that the Serb was hushed up - but why?