This beautiful arched gate is all that remains of the fortress the ancient mountaintop town of Amadiya once was.

The embalmed remains of the communist leader lie within a custom crystal coffin.

These strange piles of magnetized volcanic ash travel across the desert about 50 feet per year.

A small town in Rajasthan has been dubbed the "City of Stepwells," and Raniji ki Baori is the queen.

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

The Tudor-style cottage in the middle of the square is not quite what it seems.

A remnant of Korea's colonial past lies forgotten in a hip neighborhood in Seoul.

Natives of this mud-brick desert village use an ancient irrigation system to grow sweet, seedless grapes.

The shallow, salty inlet was a safe haven for 19th-century pirates.

The ancient necropolis houses the immense rock-cut tombs of four Persian kings.

This mix of Islamic art, vintage vehicles, weaponry, architecture, and history is an ode to eclecticism. 

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

The largest and, arguably, most scenic fortress in Bhutan.

Strange, gentle beasts resembling goat-cow hybrids roam within this patch of forest.

This sacred, circular cave is lined with pools so clear and still that it's hard to tell where the water begins.

After sunset the heart of Zanzibar's historic Stone Town neighborhood transforms into a culinary playground.

Human ancestor’s 3.6 million year-old footprints.

The largest game reserve in Africa is home to thousands of species but refuses to house humans.

Stunning ruins of what was once the center of one of the greatest empires in East Africa.

Strolling through these vintage locomotives offers a surprising amount of insight into the history of Kenya.

A glass and sculpture wonderland forms an oasis in a remote part of Kenya.

Strange sandstone canyon known as the "place broken by itself."

Get tall with nature's lankiest beasts and their warthog friends at this Kenyan preserve.

A salty cave excavated by elephants and the location of a deadly disease vector.