The U.S. adventurer's plane "disintegrated" when it hit a California mountain, experts said. The presence of bears and other scavengers may help explain why so few remains have been found.
On live TV, a Swiss pilot will attempt to rocket into the history books by crossing from France to England using a single, jet-propelled wing attached to his back.
With towering glass "sails" and fiberglass tunnels on the seafloor, a futuristic underwater museum in Alexandria may bring visitors deep into the site of Cleopatra's sunken palace.
Some remains of an ancient Roman harbor and town off Israel's coast, partially submerged, can be viewed only by visitors wearing diving or snorkeling equipment.