It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

A miniature city, once ruled by the Queen of the Netherlands.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

Feed it cash, get your very own gold bar.

A monument to the thousands of Canadian soldiers who died capturing the French ridge during World War I.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

Historic medieval fortified city in southwest France.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The hallucinogenic center of the ancient world.

This once-grandiose behemoth of a monument from the socialist era now sits quiet and closed up.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A marvel of Byzantine engineering under the streets of Istanbul.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

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

This holy site either displays a centuries-old cross or a complete fake.

This belfry is all that remains of the town that was buried by a violent volcano eruption.

Ancient man-made caves underneath small town Belgium.

The world's tallest boat lift stands as a massive piece of industrial tourism.

Hiding the longest subterranean river known in the world.

Cozy basement bar sports an inventory of over 2,000 beers.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.