Some of the ancient-looking huts among these strange rock formations aren't ancient at all, but built as part of a movie set.

The enormous diamond-shaped building packs a trove of academic and literary treasures into one futuristic space.

A 19th century pearling and fishing village abandoned before Qatar's economic boom.

These beautiful historic watchtowers were used for both scanning the desert for enemy invaders and observing the celestial world.

The building is a gigantic piece of art inspired by the shape of a desert rose.

A mesmerizing wonderland of salt-encrusted tree branches and pencil roots.

Climb down into the largest sinkhole in Qatar.

Some 20,000 dust-covered unwanted vehicles languish in the desert.

If you dare visit this fort, fire-breathing hyenas might devour your camels.

The biggest cave system in the Arabian Peninsula is home to a rare variety of blind fish.

An abandoned mountain village in Habib surrounded by walnut, apricot, and pomegranate trees.

The ruins in this village were caused by something more sinister than neglect.

This remote British Imperial telegraph relay outpost drove men insane.

Take the most scenic fjord landscape in Norway and add dramatic red cliffs, warm clear water, and playful dolphins.

A powerful cyclone once made one of the world's largest sinkholes completely fill with water.

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

Traditional architecture and ancient irrigation systems are on display in this gorgeous mountain village.

This beautifully restored fortification kept the city safe for centuries.

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

Nature's water park in the Wadi Bani Awf valley is full of pools flanked with cliffs and natural water slides.

This bazaar is one of the oldest in the Arabian world.

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

An imposing Omani fortress surrounded by date palm trees.

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