This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

The largest prehistoric ruins south of the Sahara, once a powerful center of international trade.

Though it was originally dedicated to the Hindu god Shiva, Baphuon was converted to a Buddhist temple in the 15th century, complete with a massive hidden statue.

A battle between nature and architecture in the Cambodian jungle.

5,000 skulls in memorial to those killed by the Khmer Rouge.

Khmer Rouge's high security prison.

One of the biggest markets in Asia, under one of the continent's largest domes.

Artifacts and memories from the Vietnam war, located in a place that experienced it first hand.

This French colonial post office is arguably the grandest in all of Southeast Asia.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

A memorial to the monk who set himself on fire to protest the persecution of Buddhists in Vietnam.

Nearly three tons of weapons from the Vietnam War still remain in this small, hidden museum.

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

This spectacular bridge supported by two gigantic hands looks like something out of a fantasy universe.

Vietnam's largest Buddha statue depicts a female sage.

This bridge is embedded with a giant steel dragon that breathes fire from its mouth.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

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

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

Hitch a boat ride to dine on stilts while watching wildlife.

Ancient artists in the middle of nowhere.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.