The tomb of history's greatest potato promoter is surrounded by tubers.

A simple plaque on the facade is the only reminder that the treaty ending the American Revolution was signed inside.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

Take a hidden path to the mouth of the cave to watch millions of bats swarm at sunset.

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

Buddha shrines hide within dark tunnels at this unique forest temple.

The Andean town where every single building is decorated with a brightly colored frieze.

A fairytale island floats in the middle of Italy's little-known Lake Orta.

The oldest housing complex in Riga is a mini timeline of architectural trends.

Architectureal fantasy quarter of Rome.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

Belfast's namesake river still winds below the city center, hidden from sight.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

A museum marks and documents the site of the Titanic's launch.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

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

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

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

The oldest and smallest cemetery in Paris is only open to the public twice a year.