As one of UNESCO’s World Heritage sites, Rjukan-Notodden Industrial Heritage,the town Rjukan is surrounded by stunning nature. For a town with fewer than 3,500 inhabitants, it has played an incredibly important role in the world due to its production of artificial fertilisation. Geologist Jens Esmark discovered Rjukanfossen (Rjukan’s waterfall) in 1810 and measured its height. He then came back from his travels and wrongly declared it the world’s biggest waterfall which, luckily for Rjukan’s small community, attracted painters, artists and aristocrats alike.