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

A series of eerie metal stick figures are spread out over four square miles on the bed of a huge salt lake in the Australian Outback.

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

This eccentric cave dwelling is bizarre even by the standards of a subterranean town.

One man's artistic vision is a small town government's legal battle.

Started nearly 100 years ago, this science experiment just keeps on going, ever so slowly.

This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

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

Cockatoo Island is a Heritage-listed island in the middle of Sydney Harbour.

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

One of the only places where Earth’s mantle lies above water.

White cockroaches and other cave species occupy this massive series of lava tubes.

The red crab exhibits one of the most spectacular migrations on earth, despite manmade obstacles.

A series of sculptures beneath the waves promote ocean conservation and support coral reefs.

A huge maze complex and whimsical miniature village in Tasmania.

An abandoned marine theme park has created a difficult experiment in dolphin rewilding.

Is there such thing as too many fruit bats? Not anymore.

Australia's largest medical museum featuring a 19th-century pharmacy.

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

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

Australian museum dedicated to human health and lack thereof.

One of the best beaches in the entire world.

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.