
A massive asteroid impact in Mexico's Yucatan peninsula 65 million years ago,...
US dam infrastructure is in a precarious state, with 85% of dams projected to be at high risk of failure by 2020. The tragic collapse of the South Fork Dam in Johnstown, PA, during a storm, starkly illustrates the catastrophic consequences of neglecting this vital infrastructure.
Seasons: 3
Current Status: Ended
Network: History
Production Country: France
Genres:Documentary