A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

This historic cemetery was inaccessible for several years due to dozens of land mines.

Oriental bazaar in the heart of Sarajevo.

The place where World War I began.

This circular Iranian jail was once a political prison run by the country's secret police.

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

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

The palace of the King of Kings, burned by Alexander the Great.

Marked by the hand of the explorer Henry Morton Stanley.

17th century mosque for Shah Abbas' harem.

Ancient structures used to make and preserve ice in the deserts of Persia.

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

A battle between nature and architecture in the Cambodian jungle.

5,000 skulls in memorial to those killed by the Khmer Rouge.

Khmer Rouge's high security prison.

This Balinese sea temple is thought to be guarded by the hundreds of monkeys that live around it.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

A castle hand-built by a Spanish dreamer in the Australian tropical jungle.

The UFO capital of Australia is the outback’s answer to Roswell.

Clusters of huge boulders in the Australian Outback.