4. Sewer cleaner

The most dangerous job in the world. A thread. 1. Concrete saw worker

2. Inspection and maintenance of electric lines

3. The size of these waves are massive

3. Train driver in Argentina

5. Oil rig worker

6. Mine workers

7. Steel rod maker

8. Underwater welder on offshore rig

9. Astronaut

10. Average day in the life of a construction worker

11. Coiling hot steel

12. This job is one of the most difficult in the world

13. Oil well driller

14. Insect exterminator

15.

16. Bus driver in the Himalayas

17. Glass railing installer