1Pacific Coast Bridge Collapse
Residents along the Pacific Coast Highway are cut off from the outside world after a storm causes a bridge to buckle. Experts reveal how the construction method of the old concrete bridge left it vulnerable to erosion on the steep coastline
2Island Observatory Failure
An iconic telescope in Puerto Rico suffers a spectacular collapse.
3Tower Crane Calamity
A crane collapse leaves seven dead on a holiday weekend in Manhattan.
4The Fern Hollow Fiasco
A morning commute becomes dangerous when a bridge collapses in Pittsburgh.
5Nebraska Bomb Cyclone
An aging dam in Nebraska fails after the area is pummeled by a superstorm.
6Art School Inferno
A distinguished library is ravaged by not one but two disastrous fires.
7Gas Leak Catastrophe
Twenty people are killed after a hotel explodes in America's heartland.
8The Bronx Sinkhole
A sinkhole envelops a residential street in the Bronx.
9Shopping Center Tragedy
Tragedy strikes in San Juan when an explosion rocks a busy shopping center.
10Chemical Plant Calamity
An explosion at a chemical plant in New Jersey kills five workers.