A skyscraper in downtown Chicago uses the wrong stone for cladding. A demolition in Denmark does not go according to plan. A bridge in Vancouver has a catastrophic flaw in its construction leading to tragedy. In California a dangerous stretch of railroad and an unbalanced load has devastating effect on the local environment.

A precariously balanced construction crane in the Netherlands avoids tragedy but creates major problems for a town. A error in design threatens a massive San Francisco bridge under construction. A massive whirlpool caused by drilling drains a Louisiana lake. Fatal flaws in the design and construction of a Florida beach side condo leads to tragedy.

In Miami an innovative pedestrian bridge collapses during construction with tragic consequences. A striking skyscraper has some major issues - partially caused by its limited footprint in historic Boston. An Alabama railroad bridge has a deadly design flaw and some missing safety features. A Spanish energy project has an innovative but also very risky concept.

A Florida bridge is destroyed with considerable loss of life, which could have avoided or mitigated at least. A German cold war building with an iconic roof partially collapses. A bicycle bridge in downtown Copenhagen encounters unforeseen problems. A California partial dam failure reveals a design problem that may need to rectified across the country.

A giant sinkhole in a Florida residential community reveals both geologic and human factors at work. A freeway in San Francisco also has both geologic issues and design flaws which are tragically revealed by a major earthquake. The Tacoma Narrows Bridge is torn apart by moderate wind gusts because of an untested design. A parking garage under construction in the Netherlands with an innovative design partially collapses.

One of the world's largest construction cranes collapses in Milwaukee. A floating bridge in the state of Washington is subjected to hurricane force winds which expose a design flaw A stadium roof collapse in Connecticut is the result not of the computer design but the data that was input. A dam disaster in Wales prompt important changes to the rules and regulations involved.

When Houston was struck by Hurricane Harvey a disaster ensued. A bridge collapsed in the state of Washington. A television mast, then the tallest structure in Great Britain, collapsed. In Cologne, historical archives were nearly destroyed when the building collapsed during the construction of a subway tunnel.

Owners of a Chicago tower try to standout among many others in city's skyline with a striking design look. In the rush to upgrade a stadium in the Netherlands some basic safety measures are ignored. A key bridge into city of Montreal is found to be in danger of a future collapse. One of the UK largest oil depots explodes due to insufficient safety procedures.

The Big Dig in Boston was a massive infrastructure build that would take a freeway that was blight on the city and put it underground, but a tragic accident raises concerns about its safety. A new bridge in Wales collapses before it is even completed, is it an issue with design or construction? A dam in Spain collapses, devastating a region. A Milwaukee bridge begins to sag and debris is seen falling from it without any warning.

In Connecticut part of a very busy commuter corridor in to New York City collapses. Montreal's Olympic stadium experiences a series of engineering fails over decades in attempting to complete an experimental roof. A raised highway in Liverpool when inspected is found to be far less robust than planned. In the Netherlands a dyke fails swamping a town but not due excess rainfall, surprisingly it was due to a drought.

After the sinking of another floating bridge in the state of Washington measures were taken to ensure other floating bridges were inspected and retrofitted if necessary. A beachfront high-rise on a low lying barrier island in Texas is bad idea doomed to failure. The Deepwater Horizon explosion and the resulting oil spill in the Gulf of Mexico causes both both a human tragedy and a massive ecological catastrophe. In Spain, a dam collapse at a tailing pond results in an ecological disaster.

A highway overpass in Montreal collapses tragically. A new record breaking tower in Manchester has a separate service tower attached which is covered in 40 million tiny tiles that begin to fall off after just 6 months. Above the Earth the Apollo 13 mission suffers an accident due too reused components. A small village in France starts to see cracks in the houses of the residents.