Challenger Space Shuttle Disaster (1986)
Tangshan Earthquake (1976)
Vladimir Lenin's Death and Aftermath (1924)
The Halifax Explosion (1917)
2014 FIFA World Cup Violence
Queensland Floods (2010-2011)
Kumbh Mela Stampede (2013)
Tragedy of the Andes Plane Crash (1972)
Train Derailment Disaster
Industrial Accidents in Oil Fields