Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

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

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

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

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

A beloved local artist has been honored with this statue of a man emerging from a toilet.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

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

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

A fortified city, home to a remaining population of five families

A stunning mosque owes its design to an Ottoman ruler nicknamed "the Butcher."

The only quarter of the Old City not dedicated to a major world religion.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

A "miracle" that seems to produce more holy fistfights than holy revelations.

A marvel of Byzantine engineering under the streets of Istanbul.

This restored eighth-century palace is a shining example of ancient Umayyad architecture.

A bathhouse from the second Islamic Caliphate decorated with frescoes of constellations, pleasure gardens, and naked ladies.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.