Episode 4

Here's a skyscraper with a not-so-secret superpower - it can melt cars. Justin heads to London’s 20 Fenchurch Street, otherwise known as the Walkie Talkie, to unearth the science behind this bizarre building blunder. He then heads for Berlin to find out why the city’s brand-spanking new airport is mysteriously deserted. Over in Canada, Justine Stevens learns how a minor measurement mishap became a horrible headache for bridge builders, while our man in Malaysia, Hansen Lee, uncovers the unbelievable errors that caused a gigantic stadium roof to collapse – not once, but twice.