19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This bridge was constructed from the rubble of the infamous Bastille.

The celebrated eyesore created by starry-eyed sweethearts.

The narrowest street in the world is in danger of closing up entirely.

A striking 12th-century-style castle built on the edge of a cliff.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

The bomb-ravaged remains of of a colossal Neptune.

Five candy-colored villages on the Italian Riviera.

A lover's walk between hilltop towns, decorated with graffiti love notes.

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

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

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

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

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

Standing in this historic plaza is a statue representing one of Cuba's most iconic literary characters.

His music once banned in Communist Cuba, John Lennon is now immortalized in bronze by Castro, who considers Lennon a "fellow dreamer."

Castro's communist ice cream mothership has been serving five-scoop "salads" for over 50 years.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.