The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

The oldest operating pharmacy in the world features 800-year-old recipes.

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

Ancient catacombs form the foundation for this Rococo orgy of a church.

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

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

Picturesque intersection of witchcraft and ancient Christianity.

A hidden three-foot-wide house separates these two regal churches.

Elaborate tile work in this railway station tells the story of Portugal.

The stunning interior of this Gothic church is covered in ornate gold details.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

This poignant art installation raises awareness of violence against women.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

Architectureal fantasy quarter of Rome.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

A beautifully eclectic mix of architectural styles.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.