One of the most spectacular canyons in the world.

A fortified city, home to a remaining population of five families

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

The king of U.S. high points towers over every other peak on the continent.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

Two islands just 4 km apart separated by an International Border and Date Line.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

An ancient capital city that dates back 3,000 years and harbors many surprises.

One of the most remote and isolated villages on the Arabian Peninsula.

A city built from mud and known as the "Manhattan of the desert."

Yemen's "Stone Palace" looks like it was carved right out of the tall stone column on which it is built.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

Unexplained bald patches in the landscape grow and recede over time, as though they are somehow alive.

Bizarre living fossil only grows in a small chunk of the Namib Desert.

Home to some of the oldest hominid fossils ever found.

Caves that can't seem to quit producing the remains of prehistoric humans.

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

Life and death are on parade at the most reliably perilous site of “the Great Migration.”

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

The Nobel-Prize-winning author of The Stranger is buried beneath a simple gravestone in a sleepy French village.