One tree's homage to soles past and present.

A humble homemade ride attracts visitors from around the globe to this small Midwestern town.

Covered in tens of thousands of coats of paint, this Indiana attraction holds a world record all its own.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

This hidden stream beneath Indianapolis makes an appearance in the best-selling novel "Underground Airlines."

This mysterious hill seems to pull objects uphill.

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

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

On Japan's Tashirojima Island, cats are king.

This former lieutenant governor's home is brimming with curiosities.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

This giant power line tower is a robot that can express its moods in neon.

Because sometimes the most efficient route from A to B isn't a straight line.

This spacecraft-shaped water tower is only a part of the mysterious UFO mania in this Brazilian town.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

Two awe-inspiring globes from the reign of the Sun King hang from the ceiling of France's national library.

Paris' linguistic guide to the international language of, yes, love.

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

Notorious artist squat renovated into legal studios.

Beautiful carved tunnels.

This natural French spring has been turned into a magical grotto by Roman and medieval constructions.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.