Engraved on its oblong, flat surface is an unidentified symbol, which resembles two asterisk marks. It could be the mark of a ...

Despite being a prolific draughtsman, fewer than 20 paintings by Leonardo survive. But which were his greatest hits?

The discovery occurred at Wawel Royal Castle, an art museum and one-time residence ... The ring dates to the 15th or 16th century, making it at least 400 years old. Photo from the Wawel Royal ...