Two very green residential towers cleaning the air in one of Europe's most polluted cities.

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

This giant middle finger statue sends an unambiguous message to Italy's bankers.

Third time's a charm, or in this case, two testicles are.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

This poignant art installation raises awareness of violence against women.

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

The secret medieval communication system will whisk your words above the noise of the crowd.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

A brutalist gem towering over the heart of Milan.

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

A space dedicated to contemporary art and culture, co-chaired by fashion icon Miuccia Prada.

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

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

This massive boulder was hurled into a Zurich church when a gunpowder depot was struck by lightning in 1652.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

There has been an astronomical clock on this spot since the 14th century.

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

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

Artist Natividad Sánchez wrote a new ending for one of Roman mythology's tragic love stories.

An ancient Egyptian temple in the middle of Madrid, Spain.

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

These "mermaids" that surround a plaza in Segovia are rather sphinx-like.