Nine limestone rock stacks on Australia's "Shipwreck Coast."

Prehistoric park filled with the fossils of dozens of extinct species including Australian megafauna.

A clear example of the process of erosion in action.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

Once the path of a railway tunnel, now home to thousands of glowing insects.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This derelict superstructure was a very important warning system for the Soviet military.

This attraction was abandoned after the Chornobyl disaster.

One of the most poignant ruins of the Chornobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.