This week, Ria and Alex are in Belfast, learning about the history of shipbuilding and maritime heritage, as well as taking a close look at the city's booming street art scene.We also meet Ben Parkinson from Doncaster, the most severely injured soldier to survive the war in Afghanistan, as he undertakes a special challenge in South Wales to mark 15 years since his life changed.We also meet the former rugby player from Bedfordshire now running 48 marathons in 30 days for a cause close to his heart, we go behind-the-scenes to look at the ongoing restoration work of Big Ben and we meet Team GB's first female Sikh powerlifter from Warwick.