This was cool...

This is a world you have never seen before a world normally hidden under miles of water, the landscape of the ocean bed. Combining the latest scientific data with state of the art CGI computer hardware and specially written software, we drain the water from the oceans to reveal the mountains, canyons, plains and volcanoes that are more dramatic than anything on dry land.

http://channel.nationalgeographic.com/epis...ew#tab-Overview