This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

A fascist-era rural village abandoned since the early 1980s.

Some say this medieval church is where the poet Dante married his wife and also met the love of his life.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

The “Sistine Chapel” of the Middle Ages merges 11th-century science and religion in wondrous hues.

This curious, round temple is the oldest still-standing marble building in Rome.

Its interior is adorned with some of the best examples of early Christian mosaics.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

A medieval fresco which reminds visitors that death will come for us all.

This overgrown mountain village has been abandoned for nearly a century.

A preserved dragon's rib that remembers the legend of the founding of the city of Atessa.

This amazingly preserved Doric temple was abandoned before it was ever completed.

The bones of some 7,000 soldiers killed in the historic Battle of Solferino are stored here.

A beautifully well-preserved ancient Roman villa.

The remains of the left arm of the levitating philosopher-saint are kept in a 13th-century Neapolitan basilica.

Haunting graffiti left by prisoners of the Spanish Inquisition.

The forbidden island of the Tuscan Archipelago may still contain buried treasure.

The naturally mummified body of a peasant girl saint.

This church carved into the rocks is full of enchanting stone statues.

A collection of collections, including an anatomy museum, the “Cabinet of Physics of Alessandro Volta, a museum of natural history, mineral collection, and much much more...

A forgotten "city of water" underneath the famous Trevi district.

Da Vinci's equestrian statue, 500 years in the making.