While Barack Obama keeps himself busy at the G8 Summit in LAquila, Michelle Obama visited Romes famous Colosseum today with her daughters Sasha and Malia.Following a private 40 minute tour, the trio could be seen leaving the ancient Roman arena, with 11-year-old Malia - clad in sunglasses and a T-shirt with a peace symbol clutching a guide book.The Obama ladies later had dinner in a restaurant near the Pantheon that is a favourite with US government officials.The Obamas spent two days in Moscow this week meeting President Dmitry Medvedev and Prime Minister Vladimir Putin. There they agreed a landmark deal to reduce their stockpile of nuclear weapons.