The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

One of the American Southwest's most extensive collections of Navajo rock art.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Massive volcano in the Andes is the farthest point from earth's center.

The largest known Ancient Egyptian obelisk.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

A massive work of modern art that appears to be a crop circle in the middle of the desert.

One of the most well-preserved temples of ancient Egypt.

An endless sea of white conical domes.

Ozymandias’ time-keeping temple.

This rare basalt crater lake is used to study the Moon and Mars.

Siddhartha Gautama sat here and received enlightenment.

An imperial fortress city that incorporated cultural elements from the entire Mughal empire, only to be abandoned the year it was finished.

At 8,000 feet, the world's highest tea estate draws visitors for both its products and its panoramic views.

The ancient water tanks remain some of the ruined city’s most beautiful architecture.

This stunning 15th-century royal hill fort preserves the age of chivalry in Rajasthan.

Hidden in the shadow of a rocky fortress is one concubine’s long-forgotten legacy.

Rock-cut cave complex filled with ancient Buddhist artwork.

The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

The remains of what was, not so long ago, the world's largest city.