When you think of Sweden, IKEA, Volvo and Greta Thunberg might be the first things that come to mind. But think again, because Swedenâand more specifically VĂ€stmanland, Dalarna and VĂ€rmlandâoffers some of the best diveable mines in the world. Constantin Ene and Martina Utzinger take us on a tour of one of them: the LĂ„ngban Mine.