In this classic episode of Stuff to Blow Your Mind, Robert chats with Michael Denis Higgins, Professor Emeritus of Earth Science at the Université du Québec à Chicoutimi and author of the new book “The Seven Wonders of the Ancient World: Science, Engineering and Technology.” What was the Colossus of Rhodes, why did it impress the ancient Hellenistic world and how might we recreate it in the modern world? (Originally published 07/27/2023)