Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

The largest and most famous wax anatomical collection anywhere in the world.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

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

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

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.

A hospital where antique dolls are given new life.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

A massive marble foot is tucked away in a small alley near the Pantheon.

This statue is the only female representation of Rome's "talking statues."

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

This ancient market is often referred to as the oldest shopping mall in the world.

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

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

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

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

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.