Published: 11 May 2026 at 00:00 Europe/London

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Episode notes

It’s one of the most iconic structures in the United States – the giant granite faces of four American presidents, staring out from the side of Mount Rushmore. But how do you carve faces out of a mountain? Why is the site in South Dakota? What lies hidden behind the faces, buried deep within the rock?

Today, investigators are piecing together the true story of Mount Rushmore – and discovering that, one day, the carving of a Native American chief will dwarf even the ‘Shrine to Democracy’.

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