Ancient Structures: Secrets Revealed

4:00 PM to 5:00 PM

Tuesday 30 June

Volcanic Origins

Season 1 Episode 4

How volcanic rock was used to build huge structures, including a fortress in Sri Lanka, an intricate Hindu temple, and mysterious stone heads on a remote island in the Pacific

Ancient Structures: Secrets Revealed airs on National Geographic Channel HD at 4:00 PM, Tuesday 30 June. (Subtitles, audio description.)

Learn more about Ancient Structures: Secrets Revealed and other education/science/factual topics on our factual page

Topics

Education ➝ Science ➝ Factual Topics

Archaeology