An adventurous eight-year-old boy has become the youngest ever Brit to visit the world ’s seven continents. Intrepid Jamie Meconi bagged the impressive record after he arrived on Antarctica’s vast snow-covered ice sheet earlier this month. The pint-sized traveller, who has visited 85 countries, began circumnavigating the globe with his mum, Hayley Meconi, 45, before his first birthday. His globe-trotting has also taken him to North and South America, Asia, Europe, Oceania and Africa. He has