A fairy tale castle in modern Rome.

A collection of objects supposedly singed by the hands of souls in purgatory.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

2300-year-old Roman road connecting the empire.

The underground sanctuary of a mysterious ancient cult.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Architectureal fantasy quarter of Rome.

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

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

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

This graffitied 19th-century building was a prototype of European industrial architecture.

A crushed gate and giant bronze head serve as a reminder of Greece's fight for freedom.

A grotesque collection of wax limbs depicting the symptoms of venereal disease.

The site where hundreds of Greeks were tortured by the Nazi secret police is now a cosmetics store.

This striking sculpture of Icarus honors Greece's fallen flyers.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

Where commuters walk through remnants of an ancient Greek necropolis.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

This ancient hydrological marvel is now the base of a modern outdoor cinema.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

A Moroccan getaway in the mountain range that plays the Himalayas' stunt double.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.