A design meant to preserve a Pittsburgh bridge leads to its collapse. Just one construction fumble can make a cozy home crash. Brazil’s new metro line build coincides with a sewage pipe rupture, and half-built skyscrapers keep turning into ghost-scrapers. An active volcano finally erupts causing staggering damage, while excess loads send truckers off road and off schedule. Snow tears apart a stadium roof and caves in a shopping mall rooftop. And a wave of porter beer leaves a tsunami of devastation. Finally a mega-billboard falls over and attracts the wrong kind of attention.