Caves
Saalfeld Fairy Grottoes
Saalfeld/Saale
The Saalfeld Fairy Grottoes (Saalfelder Feengrotten) in Saalfeld, Thuringia, are a former alum slate mine that has been open to visitors since 1914 and holds the Guinness World Records title of the world's most colorful show grottoes. Unde…
90–300 min