If we could lift up the ground beneath our feet what would we see? We would see how the earth works. The earth is a machine its moving parts buried deep beyond our sight. But using the Earth Machine, a vast 3D model of our planet within an aircraft hangar. We can reveal the enormous geological processes driven by a vast heat engine buried 3000 miles beneath us. It has the power to move continents, create devastating earthquakes and powerful volcanoes....

Three manmade marvels, ancient to modern, that showcase the incredible breadth of human imagination and man’s mastery of engineering.

The Geneva Summit brings Dwight D. Eisenhower together with representatives of Britain, France, and the Soviet Union in an effort to reduce international tensions. Adlai Stevenson makes another presidential bid, covered in this episode of Year by Year.