More than 100 monumental tombs carved into rock are preserved at this ancient Nabataean site in the Arabian Desert.

The rocks around this mountain are filled with so many carvings that the area became known as the "open library."

An unfinished tomb carved into a giant boulder in the Arabian Desert.

Lions carved into the rockface adorn these two tombs built into the mountains of Dadan.

Within the Saudi Arabian desert lies a 2,000-year-old ghost town made of stone and mud.

Kuwait City's uniquely designed water towers look straight out of a retro sci-fi cityscape.

A private collection of over 30,000 ancient and modern items showcasing the beauty of Islamic calligraphy.

For centuries, Jeddah’s old town was a major trading port and a point of entry for Hajj pilgrims traveling by sea.

These towering cliffs jut dramatically from the middle of a barren desert.

The once highest point in China blends symbolic design with a kick of adrenaline.

One of the largest, grandest imperial mausoleums was built as the founder of the Ming Dynasty's final resting place.

Once an imperial lake garden, anyone can now visit this city park.

This bridge dates back to the 9th century and allows visitors to walk an ancient path amid modern industrial trappings.

The grassy landscape is home to the world's last truly wild horses.

Enormous statue of the Emperor of the Mongols.

A huge communist-era propaganda monument and mural that offers stunning views of the Mongolian capital.

A collection of old steam and diesel locomotives sitting in a fenced-off garden.

A beloved tribute to the Fab Four and the freedoms they inspired.

This massive piece of aviation history calls this residential neighborhood home.

Two nearly identical Chinese pagodas stand side by side, along with ancient stone relics.

Stretching almost 2,000 feet, this painting is one of the longest pieces of Buddhist artwork in the world.

This short pedestrian span is also known as the "Fairy Walking Bridge" because it looks almost magical.

A fifth-century temple improbably built into the side of a cliff.

Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.