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

The bones of this aquatic dinosaur turned to opal over the centuries and the beast's remains were almost sold as jewelry.

Microscopic fossils suggest Australia may be the birthplace of sulphur-based life forms.

An ancient engraving by the Cammeraygal people was uncovered in the transformation of a North Sydney industrial site.

These Australian rock formations look like Martian beehives that have grown up out of the landscape.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

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

Aqua white sand highlighted with fiery red rocks.

This Australian beach is composed of tiny shells.

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.

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

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

A clear example of the process of erosion in action.

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

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

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

The largest collection of medicinal plants in Australia is also home to a witch who will show you how to use them.

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

This extraordinary geological oddity resembles human-made pavement.

This dramatic sea spire is home to the world's rarest insect and is part of the lost continent of Zealandia.

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

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.