Explore the rich history of Colombia's Indigenous peoples.

Climbing the "mountain of frustration" is no easy feat.

This 900-year-old mosque was restored using traditional techniques and materials.

Village of slate houses, built on a white marble outcrop.

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

This giant volcanic crater holds its very own field of salt.

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

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

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

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

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

Modern museum, designed for Jihadi tourists.

This massive chapel in the middle of the Indonesian forest is both haunting and fowl.

In this rare traditional factory, three generations of know-how, several strong cows, and a one-ton mortar come together to make Yogyakarta's famous "ugly noodles."

This dome-shaped mountain boasts amazing views and has a rich religious history.

A "miracle" that seems to produce more holy fistfights than holy revelations.

See hundreds of herons and egrets in the heart of the city in this dreamy hidden park.

Fabulous formations, weird and wonderful wildlife.

The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.

This underwater cave in Madagascar is home to what is thought to be the country's largest fossil graveyard.

Climb right into the heart of this colorful Iceland volcano.

A winding, blood-red tunnel of hardened lava navigable by foot.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

This stunning concert hall has become a symbol of Iceland's national recovery.