One of the most spectacular canyons in the world.

Morocco's Argania trees are infested with nut-hungry goats.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

A more chill but no less fascinating version of the famous ancient archeological site.

The only quarter of the Old City not dedicated to a major world religion.

This archaeological site was the center of the extinct Yarmukian culture which developed the first roads and pottery in Israel.

Oldest Protestant church in the Middle East, designed to resemble a synagogue.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

This subterranean funicular is one of the world's smallest subways.

This "Jewish Sistine Chapel" was designed to reinvigorate Judaism's artistic legacy but was almost lost to misguided restoration.

A "miracle" that seems to produce more holy fistfights than holy revelations.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

Ancient snack bar of the Roman Empire re-opened.

Erotic art covers the walls of the largest ancient pleasure palace.

100 year tradition of fist fights, marked by marble footsteps.

Ozymandias’ time-keeping temple.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Secret refuge and museum of the Duke of Florence.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

Pilgrimage site for star-crossed lovers.

The glowing blue Nymphaeum of Emperor Tiberius.