A "fragment of paper with brown scrawls" discovered recently in a public library in the French city of Nantes was not just trash. It was a coded document written by Leonardo da Vinci. (photo)

Violinist Andre Rieu wows a stadium full of spectators with a beautiful Celtic rendition of the hymn Amazing Grace, complete with a band of pipers and a lone pennywhistle. The video is available on YouTube.

In 1086, William the Conqueror undertook the daunting task of cataloging his estates and possesions in England. The results are known as the Domesday Book. Now author John McDonald is using modern economic analysis to evaluate the productivity of the Wiltshire estates.