Could Ancient Egypt’s most iconic monuments have been built with extraterrestrial assistance? In the second episode of our series on some of history’s most well-known conspiracy theories, we delve into the idea that aliens helped built the pyramids. In conversation with Rob Attar, Egyptologist Joyce Tyldesley explores the origins of the theory and explains what we know about how the pyramids really were constructed.

History’s Greatest Conspiracy Theories is produced by the team behind BBC History Magazine. For more fascinating stories from the past, head to HistoryExtra, the home of ‘History’s Greatest’ podcasts. There you can find other feeds including History’s Greatest Cities and HistoryExtra LongReads. Find out more at historyextra.com/podcast.

We'd love to know what you think about the podcast, so leave us a review and let us know the topics you think we should be covering. Or, follow us on Facebook, X, Instagram or YouTube to keep in touch.

You can listen ad-free to this episode and more by subscribing to HistoryExtra Plus here: https://apple.co/4fgRA1d.

This episode was hosted by Rob Attar and produced by Jack Bateman.

Learn more about your ad choices. Visit podcastchoices.com/adchoices