The United Arab Emirates's biggest and oldest fort pays homage to a lost era.

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

One of the largest sand dunes in the world is nicknamed the "Scary Mountain" due to its steep slope and sharp incline.

The world’s largest LED display, built over an F1 race circuit.

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

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.

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.

Whitewashed mosque contains the world's largest carpet.

An abandoned desert hamlet swallowed up by sand.

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

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

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

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

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