Massive Engineering Mistakes

What caused a Baltimore street to collapse onto a railroad? How did engineers fix London's wobbly Millennium Footbridge? Experts and witnesses analyse what happened.

In San Francisco, California, residents in a luxury apartment block noticed their floor wasn't flat. Experts and witnesses analyse what happened to the building.

When an oil rig in Louisiana drills into something unexpected, a cataclysmic event is unleashed, causing a lake to suddenly disappear; experts use the latest science to investigate what went wrong and how it can be fixed.

Once considered the eighth Wonder of the World, the Kinzua Bridge was the longest railway bridge in the world. But, a freak tornado destroyed it - why did it fall?

What epic engineering error caused flooding in Chicago? Plus, on the east coast of the UK, residents seek a solution for their houses that are falling onto the beach.

When a new bridge suddenly collapses in Miami, several die in a horrifying calamity; experts use the latest science to investigate what went wrong and how an innovative bridge-building technique could be to blame.

What architectural error ruined a Paris landmark? Plus, in Dallas, Texas, soaring temperatures and sunrays blaze and reflect into high-rise apartment building.

What Scottish landmark has a limited timespan with risky consequences? Also, in Liverpool on New Year's Eve a huge fire broke out in a carpark - what happened?

When a dam breaks during routine maintenance, engineers fear a catastrophic flood; experts use the latest science to investigate what went wrong and how a simple miscalculation could be to blame.

In Maryland, an aging and crumbling sewage system wreaks havoc in Baltimore. Experts and witnesses analyse what caused the major environmental and health problem.

A skyscraper in London risks killing pedestrians when large and heavy bolts from the support structure begin falling to the road below. And, why did a highway in Germany collapse?

After a giant suspension bridge begins to violently rock, it suddenly collapses, marking one of the most iconic engineering disasters of all time; using the latest science, experts .. show full overview

America's first space station threatens to fall to earth. And, a miscalculation means strong winds could cause a New York skyscraper to topple over. What happened?

Why did an apartment block in Liverpool resist demolition? And, how did an engineering mix-up in Bristol derail a new bus route? Experts examine what happened.

As Big Blue, one of the largest construction cranes in the world, lifts a one-million-pound (500-ton) section of roof for Milwaukee's Miller Park Stadium it suddenly collapses. Experts use the latest science to investigate what went wrong.

A citywide engineering oversight triggers massive flooding in Houston. In the ancient German city of cologne, a massive hole swallows a building full of valuable relics.

What caused a windowpane to fall 39 stories from a Chicago skyscraper to the footpath below? A brand new stadium roof crashes down without warning in the Netherlands.

Boston's Big Dig was one of the most ambitious engineering projects in history, but in 2006, a fatal collapse in one of its tunnels put the ambitious project in doubt; experts reveal what caused this engineering disaster and how it was fixed.

Montreal's Olympic Stadium was an ambitious engineering project with a striking Space Age design, but it's distinctive roof has caused over one billion dollars in cost overruns; experts reveal what went wrong and how cutting-edge science can fix it.

The Deepwater Horizon oil rig drilled into the deepest oil reserves on the planet, but a sudden explosion on-board led to the worst oil spill in history; experts reveal what went wrong and how cutting-edge science finally fixed this catastrophe.

New science reveals the inside story of the Apollo 13 disaster, and using the latest evidence, experts reveal what really went wrong and how NASA saved the lives of the three astronauts stranded in space in a life-or-death race against the clock.