The ruins of Brisbane’s own Alcatraz now sit in the middle of a national park.

This bridge is so steep it looks like a rollercoaster.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

World-famous, Pink's still manages to keep its prized cult fetish status.

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.

The cliff and rock formations are made out of Sioux Quartzite.

One of the few remaining temples of the Religion of Humanity.

This lonely gas station has stood at this location since 1917.

You feel like you're in a forest, but you're actually walking amidst the branches and trunks of a single giant tree.

The colonial city's social history is reflected in its fanciful door knockers.

This magnificent 18th-century hall consists of a maze of nearly a thousand interconnected passages.

The large collection of pre-Columbian pottery might make you blush.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

The highest bridge in America was built for an almost unnervingly small amount of money.

You can find America's highest suspension footbridge at Grandfather Mountain in North Carolina.

This refurbished gas station is one of the oldest in Texas, located on the original Route 66.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

Although it appears much older, this castle-like tower is actually a Georgian-era folly.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

This recipe is set in stone.

This cemetery is home to numerous granite headstones that are works of art unto themselves.

The final resting place of the author who gave us the Little Mermaid, the Ugly Duckling, and many more beloved fairy tales.

Depending on the region's rainfall, this church may be partially submerged.