Liechtenstein's royal family calls this medieval alpine castle home.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

Climb the dead electric pylons of Messina.

A long-buried ancient ruin unearthed right in the middle of the city.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

A particularly disconcerting tribute to Irish martyrs.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

An open-air museum in a mountain valley features works designed to blend in with—and disintegrate back into—their natural surroundings.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The walls and streets of the ancient city are peppered with penises.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Erotic art covers the walls of the largest ancient pleasure palace.

Ancient snack bar of the Roman Empire re-opened.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

Five candy-colored villages on the Italian Riviera.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Go inside to really appreciate this 500-year-old technological masterpiece.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

The yawning maw of this pagan visage is said to bite off the hands of liars.

A tribute to the incredible generosity the Choctaw Nation showed the Irish people during the Great Famine.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

Budapest's Communist-era statues, banished to the suburbs.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Hilltop monument to the victory of a new nation in the Franco-Prussian War.