Welcome to Iowa Public Television! If you are seeing this message, you are using a browser that does not support web standards. This site will look much better in a browser that supports web standards, but it is accessible to any browser or Internet device. Read more on our technical tips page.

Iowa Public Television

 

Amazing Underground Secrets

Secrets & Treasures (2 of 3) (#102)

From ancient history right up to the present day, the underground world is the first choice for those seeking concealment. [55 minutes] TV-PG Closed Captioning

This show aired...

PBS Video

Series Description: AMAZING UNDERGROUND SECRETS is an eye-catching, three-part series exploring the wonders that lie hidden below the planet's surface. It's a world of surprising, dramatic, awe-inspiring and sometimes magical things, from underground telescopes to crystal caves, from meandering tunnels to massive caverns to whole cities. Getting there is only part of the challenge; returning safely is a feat in itself.

« Upcoming Episodes

All Episodes

  • Natural Wonders (1 of 3) (#101)

    Intrepid underground explorers make amazing discoveries and share sights of remarkable beauty. [56 minutes]

  • Mastering the Underground World (3 of 3) (#103)

    Some of the greatest human minds have been engaged in making the underground safe and accessible. Explore the most breathtaking feats of technology, past and present. [54 minutes]

« Upcoming Episodes

« Back to Programs A-Z