The oldest stone house in Paris was built by its most famous alchemist.

This massive library holds what was once the largest book collection in the world.

This previously dilapidated alleyway has been transformed into one of Melbourne's finest hidden art locations.

An active seahorse farm is currently saving Tasmania's handfish from extinction.

The Gunditjmara Aboriginal people of Australia began construction on this vast aquacultural complex 6,600 years ago.

This rickety old shed hides a trove of secondhand literary treasures.

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

You'll find the little birds tucked within the rocks of this Australian beach.

A huge maze complex and whimsical miniature village in Tasmania.

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

One of Australia's largest secondhand bookstores.

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

Australian Lake set aglow by Noctiluca Scintillans.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

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

This massive complex is made up of hundreds of smaller temples that date back to the ninth century.

This massive chapel in the middle of the Indonesian forest is both haunting and fowl.

In this rare traditional factory, three generations of know-how, several strong cows, and a one-ton mortar come together to make Yogyakarta's famous "ugly noodles."

The second generation of a mighty volcano rises from the sea.

Explore a uniquely pristine Borneo forest, now protected by former headhunters turned tour guides.

A crazy maze of a hostel, where every trap door and secret entrance brings you to a new wacky, wonderful room.

A real-life "hobbit" cave in Flores, Indonesia.

Hundreds of Buddhas in a re-discovered Indonesian temple.

These 40,000-year-old stenciled hands are older than the famous cave art in France and Spain.