Largest lake in Great Britain measured by surface area.

Five candy-colored villages on the Italian Riviera.

Modern-day cave dwellers carve elaborate homes out of volcanic debris.

Putrefaction plateaus in Iran, where the dead were sent for decontamination before going to their final resting place.

Named after a legendary garden called Eram in southern Arabia, built by order of Shaddad, an Arab king who wanted to compete with Paradise.

Marked by the hand of the explorer Henry Morton Stanley.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

In Egypt's expanding metro area, many of the neighbors are dead.

Charnel house at the foot of Mount Sinai.

The deadliest diving spot in the world is also a stunning geological marvel.

This bazaar is one of the oldest in the Arabian world.

A sinkhole and now a swimming hole, too, full of dazzling turquoise water.

This remote British Imperial telegraph relay outpost drove men insane.

Skyscraper powered by wind turbines attached between its towers.

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

A historic chapel filled with colorful murals and a colorful past.

Neighborhood in Jerusalem is home to the ultra-orthodox haredim.

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

This historic rec center in the heart of Israel is a bastion of peace and togetherness.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

A massive, heart-shaped, wind-carved crater in the middle of the Israeli desert.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

A bathhouse from the second Islamic Caliphate decorated with frescoes of constellations, pleasure gardens, and naked ladies.

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