This ancient stone bridge is a hub for daredevils.

This remnant of an ancient Persian city is considered to be the world's largest single-span brick vault arch.

The surviving pieces of an ancient aqueduct that may have fed into the lost Hanging Gardens of Babylon.

Giant reed houses made in the marshes of Southern Iraq.

Celebrated as a center of civilization, the remains of the ancient city have been nearly destroyed by greed, egoism, and war.

9th century Abbasid mosque, damaged in modern warfare.

The sacred shrine of the Yazidis.

An ancient fortified mound raised over the millennia from settlements built one on top of the other.

This beautiful arched gate is all that remains of the fortress the ancient mountaintop town of Amadiya once was.

A shrine on the shores of the Tigris.

Ancient rock-cut tomb? Definitely. That of a great Median king? Unlikely.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

Stumps of an Ice Age forest, visible only at low tide.

An enigmatic natural rock formation with a manmade passage cut through the center.

A giant doughnut was given to the small New Zealand town of Springfield to promote "The Simpsons Movie."

Enjoy coffee and cake while viewing antique medical equipment at this unique cafe.

A little church on a tiny island looks like something from a fairy tale.

This "floating island" plateau sits 7,671 feet above the forest floor.