These are the 5 worst Quality Failures in Construction and Building industry:
5. Hyatt Regency Skywalk Collapse, Kansas City , USA 1981
4. Deepwater Rig Oil Spill, Gulf of Mexico, 2010
3. Sampoong Department Store Collapse, S.Korea, 1995
2. Rana Plaza Garment Factory Collapse, Bangladesh, 2013
1. Banquiao Dam Collapse, China, 1975