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

The bluer than blue waters in these natural Israeli caves are reached via the world's steepest cable car.

A stunning mosque owes its design to an Ottoman ruler nicknamed "the Butcher."

This ancient tomb in the West Bank is a holy site for Jews, Muslims, and Christians alike.

The abandoned shell of what would have been the Jordanian royal family's summer palace.

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

A geometric jumble of homes.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

Naturally protected city carved from a rock face.

A deadly ancient portal to the underworld.

An abused and forgotten metropolis, abandoned for centuries.

A Turkish ghost town abandoned in a population exchange with Greece.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

This 1939 grave of a British soldier now receives legions of unlikely visitors.

This ancient village is peopled by a religious minority and is still using some of the same materials it was built with thousands of years ago.

This former monument to an invented Iraqi victory was turned into a military camp during the subsequent invasion.

Hidden beneath a washing machine in a fake kibbutz, this secret bullet factory has been preserved as a museum.

Submerged ruins of a Neolithic coastal settlement, where houses, wells, graves and skeletons have been unearthed.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

A city entirely devoted to illegal gun production.

This commanding mausoleum holds the remains of Muhammad Ali Jinnah, the founder of Pakistan.

The headquarters of Pakistan's first press club remains a haven for debate and discussion.

The bulletproof cross stands at the only operational Christian cemetery in Pakistan's most populated city.