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Ancient Structures: Secrets Revealed

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

Sunday, 28 June 1 airing
12:00
National Geographic Channel
S1 E4 · Volcanic Origins
Tuesday, 30 June 1 airing
16:00
National Geographic Channel
S1 E4 · Volcanic Origins
Wednesday, 1 July 1 airing
20:00
National Geographic Channel
S1 E5 · Dealing with the Devil