Atlas Obscura
Königshöhle (Kings Cave) in Baden bei Wien, Austria
Extensive archaeological excavations completed in this striking geologic formation outside Baden, Austria, helped bestow the term "Baden culture" upon a Copper Age civilization that once lived in the central Danube region. In the course of these 1920s excavations, early Neolithic ceramics, a clay spoon from the Lengyel culture, ceramic parts from the Bronze Stone Age, jewelry from the Copper Ag…