A historic hotel on the edge of the Australian outback.

Incredible rock formations jut from the southern end of this spectacular stingray-viewing spot.

Not a single witness can attest to the creation of the world's largest geoglyph.

This once-booming gold mining hub was basically abandoned overnight.

6000-year-old coal fire moves one meter per year.

A wonder of natural limestone formations etched by millions of years of natural interaction between rainfall and rock and air.

Clusters of huge boulders in the Australian Outback.

An ancient rock engraving shows Aboriginals used their advanced knowledge of the stars to hunt and gather.

Rainforest filled with record-holding eucalyptus.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

One of Australia's largest secondhand bookstores.

This pair of Australian "waterfalls" appear to be falling straight across the land.

A stray meteor left this picturesque hole in the Australian outback.

Alien rock formations grown from the sands of an Australian national park.

One of the best beaches in the entire world.

A clear example of the process of erosion in action.

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

The unique ecosystem atop an Australian mountain is home to some colorful inhabitants.

The tallest sea cliffs on the Southern Hemisphere are a climber's worst nightmare.

An opal mining town in the middle of Australia where people live, worship, and shop underground.

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

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

An Australian lake whose pink hue defies scientific explanation.

A castle hand-built by a Spanish dreamer in the Australian tropical jungle.