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Volcanic Origins
Oct 27, 202552 min
In Sri Lanka, a fortress rises majestically from volcanic ashes. Mysterious stone heads dot a remote island in the Pacific. In India, an intricate Hindu temple emerges as one of the most astounding examples of rock-cut architecture in the world.
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Episode Summary
"Volcanic Origins" is episode 4 of Secrets of Ancient Structures season 1. It aired on October 27, 2025.