The Aztecs believed the world would end by earthquake and fire. For a moment in 1985, it seemed they were right. Mexico City was struck by an earthquake both deadly and mystifying. How did people survive for nine days in the rubble? Learn how the largest urban center on the face of the earth was built in perhaps one of the worst places for earthquakes, and what happened in 1985 when one of the world's strongest ever earthquakes rocked it seemingly to the ground.