More than 20,000 artifacts and pieces of ancient gold jewelry were discovered in 1979 in Afghanistan. Mysterious "key holders" pledged their lives to protect the treasure from plunderers. Did they succeed?

An ancient Egyptian "city of the dead" has yielded a surprising series of richly appointed tombs dating to the days of Greek rule.

Well-preserved mummies and gilded caskets have been discovered in an ancient Egyptian "city of the dead" thought to have been looted clean.

Egyptian homeowners who find ancient artifacts buried on their land sometimes sell them to smugglers. Lisa Ling goes undercover to show how it's done.

Some of Egypt's greatest treasures have ended up in foreign countries, including the Rosetta Stone, which unlocked the secrets of Egyptian hieroglyphs. Now Egypt wants the artifact back—if only for a visit.

The 2,500-year-old tomb—containing nearly four dozen victims of human sacrifice, gold artifacts, and an ornate sword—sheds new light on Chinese rituals in the age of Confucius, experts say.

The Parthenon is among Greece's greatest treasures, but important parts of it have been displayed at London's British Museum for two centuries. Should Greece's ancient marbles be returned to Athens?

Experts have restored a 1,400-year-old glass mosaic glowing in gold that was discovered in an ancient palace, Israeli authorities announced.

The altar at Zeus's mountaintop "birthplace" was used for centuries "before there was a Zeus," new finds in Greece reveal.

Many of the treasures stolen by the Nazis were never recovered. Among the most valuable is Russia's priceless Amber Room ... will it ever turn up?

A 2,500-year-old vase featuring scenes from a Homer poem is among several antiquities returned to Italy after lengthy negotiations with the Metropolitan Museum of Art.

For centuries, treasures have been taken from their homelands. Should the artifacts go back? Who should decide?

Part one of nine.

Archaeologists have opened a completely intact burial chamber of an ancient priest-politician—providing an unusual glimpse into the lives of Old Kingdom non-royalty.

Polynesians and Micronesians show little genetic relation to other South Pacific islanders, suggesting the two groups hail from island-hopping East Asians.

The fossil of a dinosaur with a flesh wound has been discovered in northeastern China, offering the most complete view to date of dinosaur skin, a scientist says.