Originally produced as an episode of the PBS program, NOVA.
Summary:
Sinkholes have swallowed highways, apartment buildings, horses, camels, and even golfers with monster-size holes cracking the earth from Siberia to Louisiana. Filled with compelling eyewitness video of dramatic collapses, and following scientists as they explore the underlying forces behind these natural disasters, Nova travels the globe to investigate what it's like to have your world vanish beneath your feet.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.