What would happen if the planet lost its oceans? Using the Earth Machine, a vast working 3D virtual earth in a hangar, we get to see what would be left if the planet were drained of its oceans. Hidden beneath all that water are some of the biggest natural formations on Earth, including the longest mountain ranges, the tallest volcanoes and the deepest canyons.

Originally released by BBC, 2011. Streaming video file encoded with permission for digital streaming by Infobase on April 30, 2015.

Presentation Recap (0:43); --Credits: Presentations: When Am I Ever Going to Use This? (0:07); -- Geysers (4:37); -- Sea Floor Cables (7:42); -- Mariana Trench (4:52); -- Ring of Fire (14:10); .