The seat of the Mantua bishop holds many secrets within its walls.

For centuries, this town's hot springs have been embraced by rich and poor—and even by Popes.

The ruins of this once gorgeous medieval church are still standing, despite the region's constant flooding.

Nobles would stage mock naval battles on this large lake at the Royal Palace of Caserta.

An old mining site that is slowly being reclaimed by nature.

A strange-looking 18th-century tower sits on a tiny islet just off Livorno.

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

A floating bridge leaning on barges allows pedestrians to reach the historical center.

This medieval settlement was abandoned after a series of landslides. What remained was largely destroyed during a mock battle for a WWII film reel.

During World War II, a number of important sculptures and paintings were moved to this castle for safekeeping.

A prehistoric route that has claimed many victims is now closed to traffic.

An enormous sinkhole that local lore attributes to the anger of the Virgin Mary.

The remains of 50,000 World War I soldiers rest under a towering arch overlooking the Alpine battlefields.

The construction of a new church near Venosa was started in the 11th century, but never finished.

This Roman theater was crafted into the local tuff rock and was rediscovered during the 19th-century.

A former mining village that now operates as an open-air museum.

Constructed during the 1960s, this bridge is still the highest in Italy.

This Art Nouveau mansion was used as the "House of the Screaming Child" in Dario Argento’s giallo classic.

A completely underground tour following the path of the most precious element: water.

First founded in 1472, this is the oldest bank in the world. Its history may explain why we call financial institutions "banks."

An abandoned building that once tightened a power line that stretched across Messina Strait.

Visit a secretive crypt before it crumbles to dust.

A never-inhabited village that was built as part of Mussolini's agricultural reforms.

A freedman baker’s lavish tomb has a relief showing various stages of Roman bread making.