It's a vast understatement to say that Crossrail, London's newest subway line, is big. It's massive: 23 miles of huge tunnels below an ancient city, dug by a team of 10,000 workers, to form the city's biggest transit project since World War II.
Emily Baldry, an adorable 5-year-old girl from the UK, was doing what a normal kid her age would be doing: Hanging out at with her family and digging. Unlike other normal kids though, she found a 160 million year old fossil. She called it Spike.