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 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?

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?

The legendary Giant's Causeway in Northern Ireland, a UNESCO World Heritage Site, is under threat from rising sea levels due to global warming, a new study says.

Widespread news coverage of Kenya's violence and political turmoil has caused a drop in wildlife tourism that is expected to impact the livelihoods of local people.

A man with milk jars pierced to his back, a boy with a blazing tire, and Gazans fleeing by horse are among the newsmakers of the past week.

Virgin Galactic's Richard Branson and aerospace designer Burt Rutan debuted a model of a ship planned to carry commercial passengers on a suborbital joyride within a few years.

New Zealand crowds honored Everest pioneer Sir Edmund Hillary, who received a state funeral. In Nepal, Sherpas held traditional prayer services for the beloved mountaineer.

See two giants of the sea laid low, three "royal" luxury liners united for the first and last time, a horse driven through a bonfire, and more.

The 15th-century explorer and his crew picked up syphilis-causing bacteria in the New World, a genetic study claims—though some experts say the evidence is inconclusive.

The lost citadel of Paititi may have been found, says the mayor of the Peruvian town where archeological remains were recently uncovered.

One of the world's most accomplished mountain climbers reflects on the life of a legend.

Top climber Peter Athans recalls his friend Sir Edmund Hillary's humor and humility. The Everest pioneer died Friday at 88.

Sir Edmund Hillary describes his historic climb to the top of Mt. Everest...and reveals why there is no photo of him on the summit.