Traditional 11th-century outdoor tannery.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

Road signs in Namibia mark the location of one of the five major circles of latitude.

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

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

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

This giant statue is the product of a mixture of corruption, Stalinist architecture, and North Korean manpower.

The world's largest church atop a political fault line.

A serene space tucked amid the skyscrapers of Hong Kong's bustling financial district.

Taoism, Buddhist and Confucianism are all represented in this temple that claims to answer anyone's wishes.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Climb to the top of the world's largest seated bronze Buddha.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

A blooming house of worship for the masses.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

A small statue of child Jesus given by Magellan in 1521

This holy site either displays a centuries-old cross or a complete fake.

Church organ in the Philippines constructed out of bamboo.

Five miles of underground river link lake to ocean.

A patch of Philippines forest devoted to saving the lives of an emotionally sensitive species of googly-eyed primates.

The ruins on a deserted tropical island in the Philippines bear the scars of WWII.

Bohol's mysterious brown hills.