Home / Series / What on Earth? / Aired Order / Season 4 / Episode 18

Forbidden City of Inca Gold

Treasure hunters have searched for a lost Incan city of untold wealth for a century, but new technology might finally locate its riches; a strange mountain in Egypt sparks an investigation into Cleopatra's gems and the tomb of Alexander the Great.

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Name Type Role
Nick Patterson Producer Series Producer
Jonas Stenström Guest Star Self - Biologist
Martin K.A. Morgan Guest Star Self - Historian
Dave Mosher Guest Star Self - Science Journalist
Rob Nelson Guest Star Self - Biologist
Jess Phoenix Guest Star Self - Volcanologist
Patrick Hunt Guest Star Self - Archaeologist
David Krueger Guest Star Self - Historian
Mark Horton Guest Star Self - Archaeologist
Sara Carter Guest Star Self - Journalist
Karen Bellinger Guest Star Self - Archaeologist
Scott Wallace Guest Star Self - Journalist
Haley Chamberlain Guest Star Self - Explorer
Marc D'Antonio Guest Star Self - Image Analyst
Mike Capps Guest Star Self - Technology Theorist
Mark Altaweel Guest Star Self - Archaeologist
Martin Pepper Guest Star Self - Geologist
Kirsten Sanford Guest Star Self - Science Journalist
Mike Pavelec Guest Star Self - Military Historian
George Kourounis Guest Star Self - Explorer
Guy Walters Guest Star Self - Author & Historian
Allan Maca Guest Star Self - Archaeologist
Jeff Rose Guest Star Self - Archaeologist
Hope Harrison Guest Star Self - Historian
Johanna Woolford Gibbons Executive Producer
Martin Durkin Executive Producer
Neil Laird Executive Producer for SCIENCE
Susanna Herbert Director
Sam Mortimer Director
Tom Ranson Director
Kasia Uscinska Director
Rory Kaufhold Director