Rachel Riley has become a household name thanks to her stint on Countdown. The brainy beauty isn't solely known for her dazzling looks, though. Her sharp brainpower and skill in solving those tricky numerical puzzles have earned her a legion of fans. From tackling those infamous Conundrums to reveal

In a year of 845 AD, chaos gripped its fair city of Paris. An army of fierce Vikings, led by the ruthless warlord Ragnar Lothbrok, descended upon France's shores with a fury unprecedented. Their longships, laden with warriors and plundering intent, sailed up its Seine River, a sight that strike awe