This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

An abandoned Roman salami factory has found new life as an art space home to 200 squatters.

Known for centuries as the famous Roman emperor's burial place, this monument is actually something else.

Jesus' footprints and the first catacombs in the world.

According to local folklore, this Roman sepulcher was once a throne for the Devil.

A fairy tale castle in modern Rome.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

Believed to be the remains of the lost Temple of Minerva, this nymphaeum has been known by its misnomer to this day.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

A Nesting Doll of Churches.

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

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

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

A burial vault located under Tiber Island in the middle of the Italian capital.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

In Rome’s Jewish ghetto, a 200-year-old bakery still makes the neighborhood’s historic sweets.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

An 18th-century post box used to alert the church of sick and ailing foreign pilgrims.

Rome's first modern graffito is all that is left of a peaceful protest from the 1970s.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

This gallery commissioned by Cardinal Spada is known for its magnificent optical illusion.

Architectural monsters are devouring this palace's every door and window.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."