First conquered in 1992, the climb up the east side of a 300-foot rock pillar named "Monkey Face" has become the ultimate rock-climbing challenge.

Is it true that boxing legend Muhammad Ali threw his Olympic gold medal into the Ohio River out of frustration after a racist encounter? A childhood friend weighs in on a story that has become part of the champion's lore.

Da Vinci's The Last Supper plays a key role in the 2006 blockbuster hit The Da Vinci Code. Although the film's claims are more fiction than fact, could the painting actually contain a message from Leonardo?

Archaeologists believe the sudden destruction of a pre-Columbian civilization found in southern Illinois occurred around 1150 AD. But to find the cause of such upheaval, they look to the surrounding trees.

Smithsonian's National Museum of Natural History houses one of largest bird collections in the world. One of their most prized birds, Martha, was the last passenger pigeon to ever fly.

Still fresh from his Olympic win, boxing legend Muhammad Ali was, incredibly, turned away from a restaurant in his hometown that didn't serve African Americans. The champ's own brother recalls that fateful day.

When Kirk Gibson signed with the Dodgers in 1988, fans had few reasons to be optimistic. Little did they suspect, he would take them to the World Series and make one of the most miraculous plays Los Angeles has ever seen.

Ramesses II is thought of as ancient Egypt's greatest pharaoh. His importance is reflected in the size and scale of his magnificent funerary temple, in Luxor.

Woody Guthrie captured the promise and frustration of the America he once knew in his famous song 'This Land Is Your Land.' Watch as country singer Jason Isbell learns the song's missing lyrics and pays tribute to the folk legend.

Mary Anning was a 19th-century working-class woman from Dorset with no formal education. She became one of the most celebrated fossil collectors in history.