The world’s tallest outdoor lift stretches along the stone pillars that inspired the floating mountains in the movie “Avatar.”

From amidst her whirling waves, this mermaid sees all who pass through St. Swithun’s Church. If local legends are to be believed, she serves as a warning.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

A giant roundabout made up of six smaller roundabouts can befuddle the uninitiated.

This vertical pinnacle in China was the inspiration for the floating mountains in the movie “Avatar.”

For those with no fear of heights: a skywalk 4,700 feet up on a Chinese mountain.

A total of 999 stairs lead visitors through a massive hole in a mountain known as the Gateway to Heaven.

A quiet memorial to those who died saving others in the heart of the City of London.

Abstract dinosaur models in London.

An English artist has turned an unassuming ex-council house into a time-lost house of mystery.

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

The embalmed remains of the communist leader lie within a custom crystal coffin.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

The world's largest grapevine has produced a delicious harvest at Hampton Court Palace for almost 250 years.

A medieval replica of King Arthur's legendary table, the Round Table hanging in Winchester Castle was decorated by Henry VIII.

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

A showcase of canine neckwear spanning five centuries of doggie fashion and function.

A fantastic castle rumored to be the birthplace of King Arthur.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

The hallucinogenic center of the ancient world.

Monasteries on rock pillars, once accessible only by frayed ropes.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.