This building features dozens of faces along its facade, although one is a bit chilling.

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A masterpiece of modern architecture that caused quite a stir in Paris, recreated in Bologna half a century later.

A Milanese café entirely designed by the American director Wes Anderson.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

This sacred site lives up to its name with its majestic, color-splashed sandstone formations.

Let these towering termite-building structures tell you where to go.

It's said that visitors can "see" Tasmania inside this cave.

A replica of an early 19th-century vessel that sailed across the world.

5,000 skulls in memorial to those killed by the Khmer Rouge.

Home to the oldest operating roller coaster in the Southern Hemisphere.

The pillar of this bridge contains a small home and underneath, a ballroom.

A natural rock bridge towers above the sea.

Commemorating the 19th-century labor movement in Australia.

This controversial museum includes such detested exhibits as a chocolate suicide bomber and fecal-smelling digestion machine.

A beautiful 1920s tower filled with local hidden gems.

The unique work of art celebrates the 30th anniversary of the 1988 World Expo.

This massive water spout has been luring visitors for hundreds of years, some to their death.

This shrine to film's most iconic wasteland wanderer is located in the very outback where the movies were shot.

This extraordinary geological oddity resembles human-made pavement.

You'll find the little birds tucked within the rocks of this Australian beach.