Perched above the bustling town of Kerak is a sprawling, ruinous castle that has witnessed nearly a millennia of Levantine history.

This restored eighth-century palace is a shining example of ancient Umayyad architecture.

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

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

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

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

Long before air conditioning, Persian architects found an ingenious way to cool off.

The fire inside this temple has burned for more than 1,500 years.

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

This 12,000 year old Iranian cave village has been continuously inhabited for over 3,000 years.

The hottest, driest, and most scenic desert on Earth.

A spectacular rainbow of stained glass makes the "Pink Mosque" one of the most beautiful in Iran.

Marked by the hand of the explorer Henry Morton Stanley.

The ancient necropolis houses the immense rock-cut tombs of four Persian kings.

This ancient burial site is believed to be one of the first earthquake-protected structures in the world.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.

Stockholm's narrowest alley is barely over two feet wide.

Stockholm's deepest subway station is also a stunning ecological wonder.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

It houses the remains of a 17th-century version of the Titanic.

An important landmark in the history of algebraic logic.

This beautiful site is where the first transatlantic telegraph was sent from.