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

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

An abandoned desert hamlet swallowed up by sand.

This mysterious abandoned fort looks like something pulled right from Arabian legend.

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

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.

Planned as the world’s first zero-carbon city, it had lofty ideals—but is only 5 percent completed and aiming for 50 percent carbon-neutral.