It's unclear if the Knights Templar created the secret tunnel in Acre, Israel, as an escape route or a way to secretly export valuable items. One thing is certain: It's a remarkable showcase of their engineering.
Fans of "The Da Vinci Code" know the Knights Templar as a secret society, but the story of their tumultuous two centuries in power is more shocking and scandalous than any Hollywood movie. Follow our team of experts as they go to Jerusalem's Temple Mount, the most bitterly contested sacred site in the world. With the help of DNA tests and a remarkable discovery in the Vatican archives, we reveal the truth about the knights' rise into the world's most powerful military religious order to their spectacular and sudden fall from grace.
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