A chocolatier with a quaint museum showcasing the history of chocolate.

The floating gallery illuminates the heart of Québec City's arts district.

Commonly acknowledged as the only public monument to the Devil himself.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

This little sun pays homage to a massive gate that once stood at this location.

This unassuming bookstore in the heart of Madrid is one of the oldest in Spain.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

Along the pavement of this neighborhood in Madrid are quotes from famous authors.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

Italian cave with exceptional acoustics and an unsavory history.

According to Greek mythology, this natural spring is the home of a freshwater nymph.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

This small Milan street is filled with colorful homes and a rich history.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

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

The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.