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Saalfeld Fairy Grottoes, Germany
The Saalfeld Fairy Grottoes, located in Thuringia, Germany, were once shale mines that fell into obscurity after closing in the mid-19th century. However, they were rediscovered in 1910, revealing stunning multicoloured mineral formations instead of dereliction. Today, these rainbow-hued caves are open to the public. Visitors can also visit the Feenweltchen village and enjoy a family-friendly fantasy experience with fairies and elves. Additionally, the Grottoneum, an interactive museum, offers insight into the history of the grottoes.
