This giant underground cave chamber can only be accessed through a small opening at the top.

This lonely tomb is all that remains of a once-bustling ancient trade hub visited by Marco Polo.

These gnarly desert trees produce the prized aromatic resin traded along the ancient incense trail.

An imposing Omani fortress surrounded by date palm trees.

This spectacular mosque houses the second-largest chandelier in the world.

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

Billionaire's mark on the earth.

This living legend of maritime history is enjoying a second life.

No building in the world leans as far as the so-called “Leaning Tower of Abu Dhabi.”

The cluster of igloo-like domes forms the remains of an ancient burial ground.

The world's largest frame offers spectacular views of the city's past and present.

This enormous sports car themed amusement park is home to the world’s fastest roller coaster.

Over the dunes of the Empty Quarter, the mysterious music of the desert.

Whitewashed mosque contains the world's largest carpet.

This artificial archipelago was supposed to resemble a map of the world.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

This indoor ski resort has a mountain contained inside a mall.

An abandoned desert hamlet swallowed up by sand.

This mysterious Lady Liberty stands at the entrance to a small Israeli village.

An elegant garden commemorating the 1841 visit from apostle and missionary, Orson Hyde.

Israel's premiere solar energy research facility provides energy to nomads.

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

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