An intricately carved Viking church overlooks a glistening fjord.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.

Dedicated to an "Unknown Man," this grave holds either the remains of a lovelorn suicide or a Cold War spy.

One man's artistic vision is a small town government's legal battle.

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

This pair of Australian "waterfalls" appear to be falling straight across the land.

Rainforest filled with record-holding eucalyptus.

Woven tree art gives this towering Australian woodland a touch of mystical whimsy.

A French valley with forests so lush it was nicknamed "the Small Amazonia of the Pyrenees."

Life-sized painted illusions let pedestrians blend in with the street art.

This tiny Vietnamese village is known for eating snakes and serving their still-beating hearts in shots of vodka.

Ha Long Bay's "Cave of Surprises" houses a popular phallic rock formation.

This striking landscape in northern Vietnam contains both geological and archaeological wonders.

A desert in southeast Asia, complete with a beautiful lake covered in lotus flowers.

Giant pagoda houses the car that drove Thích Quảng Đức to his death by self-immolation.

Monument to a brutal, ineffectual US bombing campaign and a sobering reminder of the human cost of the Vietnam War.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

The wartime prison now features haunting sculpted reenactments of the atrocities that took place there.

World's largest cave was only discovered in 1991, and now offers tours to the public.

Shoes and revealing shirts are not allowed inside this giant Vietnamese Christ.