Incredible National Geographic video (ca. 25 min) about Carsten Peter’s documentary project on Hang Son Doong Cave, Vietnam, a gigantic underground cave system that many equate to the Mount Everest of underground passages. Discovered in 2009 - an entire forest is growing inside; The Empire State Building will fit inside! Empire State Building
World's biggest cave discovered in Vietnam. Hang Son Doong Cave / Get unique, hands-on activity ideas for JOURNEY TO THE CENTER OF THE EARTH by Jules Verne at www.litwitsworksh... LitWits Kits make literature real and fun for kids – so they want to read more!
The Son Doong Cave in Vietnam is the biggest cave in the world. It's over 5.5 miles long, has a jungle and river, and could fit a 40-story skyscraper within its walls. Photographer unknown.
Guiding Light, Glacier Caves series. A subglacial meltwater stream below the Unteraar Glacier, Grimsell Pass, Switzerland. Eric Guth Photography