Built over an abandoned train yard, this hidden gem is full of winding paths and offers gorgeous views of Sydney Harbour.

A forest full of mystical fantasy figures, nearly destroyed by recent fires.

Largest maize maze in the Southern hemisphere built with GPS technology on more than two acres.

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

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

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

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

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

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

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

Visit the ancient, mysterious Roman catacombs ... in the Netherlands.

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.

A beautiful maze marks where three countries meet.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

The world's only museum devoted to the wonders of fluorescence.

Although it appears ancient and mysterious, the quirky folly was actually built 200 years ago by an eccentric estate owner.

Astonishing rock formations dot the Brimham Moor landscape.

Figures of unknown origin carved into the surfaces of underground caves.

A unique underground structure dating back to the 1st century BC.

A centuries-old complex of hand-dug stone chambers has sheltered locals in times of trouble.

The Church of the Annunciation was carved into the face of a cliff, just like the rest of the town of Haute-Isle.

Bits of architecture from a town destroyed in World War I now decorate this hotel garden.

The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.