9 interesting facts about the Nile River

We know more about how the victims of Vesuvius died — and it's grim

Australian fires reveal ancient water system built long before the pyramids

Gold bar found in Mexico City park was an Aztec treasure looted by conquistadors

Climate change may have been the one thing Vikings truly feared

What those beautiful glass prisms in the sidewalk are really for

Could ancient stone circles have been conduits for lightning strikes?

World's oldest married couple celebrate their 80th wedding anniversary

Ghostly remains of massive Roman shipwreck found in Mediterranean

Radar uncovers another Viking ship in Norway

Will this century-old ship go over Niagara Falls?

6 great treasures found with a metal detector