Rome's semi-secret peephole vista is also a former Crusader stronghold.

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

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

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

The plague quarantine island home to the alleged "Vampire of Venice."

Originally a leper colony, the island is now an Armenian monastery that's home to an incredible manuscript library and eclectic museum.

The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

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

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

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

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

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

The only museum with its curator—and her pets—buried inside.

Where Venice's gondolas go for a tune-up.

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

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

100 year tradition of fist fights, marked by marble footsteps.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.