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

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

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

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

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

Whitewashed mosque contains the world's largest carpet.

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

A faithful reproduction of Al-Jazari's enormous water clock.

Balanced on four stone pillars, this historic tower was the site of a tragic political assassination.

Ancient serpentine sacrifice holder that has stood the test of time.

1513 Turkish world map, full of European state secrets and snarky commentary.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

The ornate miniature mansions were built for Istanbul's feathered residents.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A marvel of Byzantine engineering under the streets of Istanbul.

Roman ruins top white travertine terraces formed by ancient hot springs.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

A monumental underground karstic wonderland is also the water source for over a million citizens of Beirut.

Mummies preserved naturally for seven centuries.

Beirut's thinnest building was the result of feuding brothers.

The largest hewn stone in history.

After this one-of-a-kind palace was built the architect's hands are said to have been cut off to keep it that way.

A refurbished locomotive from a bygone era in the middle of the Jordanian desert.

A bathhouse from the second Islamic Caliphate decorated with frescoes of constellations, pleasure gardens, and naked ladies.