Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

A public urinal so pretty, it was declared a national monument.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Massive galleon from a box-office bomb docked in Genoa.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

A massive mausoleum towers over the gravestones in a 19th-century Italian "model village."

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

Explore the quarry where the marble was sourced for Michaelangelo's David.

The highest waterfall in Italy is only "turned on" five times a year.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

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

Europe’s oldest natural human mummy.

The world's most active stratovolcano is almost always erupting.

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

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

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

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

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

This half-finished "city of toys" was almost Italy's own Las Vegas.

Pilgrimage site for star-crossed lovers.

Five candy-colored villages on the Italian Riviera.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

The castle still holds traces of the abandoned Roman fort it was built atop.