The oldest scientifically dated tree in Europe lives on a remote cliff.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

A mesmerizing reservoir nestled at the heart of a pre-Islamic Yemeni village.

These gnarly desert trees produce the prized aromatic resin traded along the ancient incense trail.

A solemn reminder of the infamous World War II war crime that massacred almost all the men in a small Greek town.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

Venice's "Island of the Mad."

Originally a leper colony, the island is now an Armenian monastery that's home to an incredible manuscript library and eclectic museum.

The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

This beautiful eden was once the vacation home of Tahitian royals before Marlon Brando bought it.

This magical-looking island is notorious for the misfortunes suffered by its owners.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

The Neapolitan Cult of the Dead still cares for the skulls at this mini-Fontanelle.

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

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

A tree that defies gravity grows in an ancient ruin.

Italy's "New Mountain" rose from the ground in a volcanic eruption in 1538.

Virgil's many-mouthed gateway to the underworld.

A submerged archeological park still holds the wonders of a Roman Sodom.