Life After People 3, Sky's The Limit

Sacred buildings around the world begin to crumble without humans to maintain them. Clues about the planet's future lie in an abandoned desert town.

Deadly toxins are unleashed upon the world without humans to contain them, turning lakes and rivers into streams of acid. There's a devastating fate for Niagara Falls.

Explore the fate of crypts, safes, time capsules, personal records and other human relics. Meanwhile, Marine Corps learn to succeed in the wild.

Insects and rodents swarm supermarkets, but some food lasts forever. An unusual paint ingredient in Da Vinci's The Last Supper seals its fate.

A massive force of water threatens to destroy everything, from famous paintings to whole cities. The fate of the Sydney Opera House looks bleak.

The things that once represented our favourite times of year meet their demise, from Christmas trees and roller coasters, to high-end resorts and cruise ships.

The most important planes in history are grounded with no humans around to fly them, including Air Force One, which suffers an explosive malfunction.

Gas leaks turn suburbs into infernos and high-rise apartments crumble to the earth in an ominous look at the fate that awaits our homes post-apocalypse.

A look at what could happen to the world underground, as minerals grow unchecked in a mine. Back on land, 400 million animals run wild in a town.

The White House meets its fate in a world without people, and the President's dog must learn the way of the wild.