This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The hallucinogenic center of the ancient world.

These broken shards of ancient ruin may hide an ancient pyramid.

Gigantic unfinished stupa and the world's 2nd largest bell.

Over 2,000 ancient temples dot the Myanmar landscape at the site of this famed archaeological site.

An out-of-place slice of France, smack in the middle of Shanghai.

A giant scale model giving a sneak peek at what urban planners see for Shanghai by 2020.

Secret North Korean passage discovered below the world's most dangerous border.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

A white Buddhist temple with a golden restroom.

This elephant kraal is the only one remaining in Thailand, dating back to the 16th century when these massive mammals were integral players in war and trade.

A limestone wonderland of water and subterranean secrets.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

Site of the largest volcanic eruption in the last 25 million years, one which may have nearly wiped out humanity altogether.

A symbol of Islam in oil-rich Brunei.

Ferdinand Magellan dubbed the world's largest water village the "Venice of the East."

A well kept and well documented look at the Bruneian Sultan's life and successes.

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

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

An extravagant monument to an extravagantly unpopular Emperor.

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

A nightmare for the claustrophobic lies hidden in Southeast Asia.

A battle between nature and architecture in the Cambodian jungle.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.