Roman Empire

More than 100 of these artifacts have been found across Europe, but no one knows what they were used for. This dodecahedron was discovered fully intact and in excellent condition.

There is good news about a beloved tree that was cut down in September. Arborists in England say they're encouraged after seeds and cuttings show signs of successful propagation.

Thousands see the tree each year as they walk along Hadrian's Wall, which guarded the Roman Empire's northwestern frontier. It appeared in Kevin Costner's 1991 film Robin Hood: Prince Of Thieves.