A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

Stunning views over Ontario's old-growth pine forests.

Remnants of cone-shaped fascist bomb shelters in Milan.

Dramatic river bend surrounds a natural red-rocked pedestal.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Come for the flowers, stay for the bats!

Go inside to really appreciate this 500-year-old technological masterpiece.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Quite simply the largest tree in the world (by volume).

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

A seemingly endless landscape of pure salt stretches far across Bolivia.

A valley of unique erosion patterns lends to a view like nothing on Earth.

The famous winding walk at Chartres is surrounded in mystery and myth.

Pilgrimage site for star-crossed lovers.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Stone memorial that's said to predict the death of the pope and the site of the Cadaver Synod.

The only pollutant in the clear blue water is sunscreen.

WWI hospital ship lost in a cyclone turns up on the coast of Fraser Island, where she remains rusted and forgotten.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

An unexpected desert oasis in South America.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

A fountain standing as a testament to a doomed alliance.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.