2. Chernobyl and Bhopal

Experts examine how the Chernobyl nuclear disaster and the Bhopal gas tragedy happened. What were the consequences and how could they have been avoided?

3. Titanic and Hindenburg

Experts examine the sinking of the Titanic and the Hindenburg airship fire. How did they happen, what were the consequences and how could they have been avoided?

4. Aberfan and Corrego Do Feijao

Experts examine the devastating Aberfan mine disaster in Wales and the Brumadinho dam disaster in Brazil. What were the consequences and how could they have been avoided?

5. MS Herald and Costa Concordia

Experts examine what caused the Zeebrugge ferry tragedy and the Costa Concordia cruise ship disaster. What were the consequences and how could they have been avoided?

6. Kegworth and Concorde

7. Tacoma Narrows and Hurricane Katrina

8. Rana Plaza and Morandi Bridge

9. Tianjin and Evangelos Florakis

Experts examine the fatal explosion at a chemical factory in Tianjin, China and at the Evangelos Florakis naval base in Cyprus. How could these disasters have been avoided?

10. Clapham Junction and Ankara Train Crash