A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Drink wine handed out through a window as part of an age-old tradition.

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

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

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

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.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

This massive metal scallop is a tribute to an English composer who once walked across this beach.

Human-made caves excavated to hide a secret society of wealthy pagans.

Over 100 years ago this pyramidal holding cell was reserved for rowdy drunks but now only offers five minute sentences.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

The remnants of this unusual bridge await an uncertain fate.

The lantern carried by the infamous Guy Fawkes when he was arrested while attempting to blow the houses of Parliament and the King of England to smithereens

One of Oxford's greatest treasures likely belonged to England's legendary King Alfred the Great.

This lonely minaret with an unusual decorative symbol is all that remains of a historic Ottoman mosque.

This 15th-century Ottoman bridge was modified to keep up with the changing course of the river Erenik.

This massive monument was unveiled the day Kosovo declared independence from Serbia.

This stone figurine was made more than 6,000 years ago and depicts a female deity of the Neolithic Vinča culture.

A 11-foot former president stands on a Kosovo street that also bears his name.