The oldest stone house in Paris was built by its most famous alchemist.

An elegant Georgian cemetery best known for the grave of the little girl whose murder on Christmas Day remains unsolved.

A lonesome Moai stands in a small Italian town some 9,000 miles away from its Easter Island brethren.

This ancient altar emerges from the thick forests to reveal the mysteries of Etruscan sacrificial rituals.

An enigmatic modern marker left next to a historic Roman site.

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

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

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

A deep mark on the remains of a Roman temple, believed to be left by a legendary warrior.

This large, circular tomb is the final resting place of the first emperor of Rome.

A magnificent waterfall is also home to the remains of a Roman hydraulic engineering system.

This ancient trail climbs the mountain where a Latin League cult worshipped Jupiter, its main deity.

A wunderkammer of curious objects and intriguing art nestled within a hub of ancient Roman sites.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

Rome's ancient Etruscan rival, now a park full of ruins.

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

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

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

One of seven Jewish catacombs in Rome and one of only two open to the public.

Jesus' footprints and the first catacombs in the world.

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

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

The underground sanctuary of a mysterious ancient cult.