One of the largest squares in Europe contains an entire artificial island.

Something's missing between the arcades of the Palazzo della Ragione in "the city of the three withouts."

The tomb of the mythological founder of Padua is not hidden in some obscure crypt, but stands right in the middle of the city square.

The pristine waters crossing this forest form a hidden waterfall among the dense vegetation.

This small but lovely sinkhole lake is the last remnant of a great prehistoric water basin.

The abandoned ruins of a failed resort hide on this verdant, picture-perfect island.

The tallest statue in Italy is also one of the world's tallest statues of Jesus.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

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

This Italian church is as beautiful as it is common, except for the real skulls decorating the many mannequins inside.

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

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

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.

Centuries ago, red and white wine poured from the statue's breasts whenever a new Venetian ruler was elected.

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

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

A new sculpture calls attention to climate change in the centuries-old city it threatens.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

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

One of Belgium's oldest hospitals saw patients from the 13th to 20th centuries before becoming a museum.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

When a massive landslide hit one of the world's tallest dams it created a tragic environmental disaster.