Grotte de Spy
History · Jemeppe-sur-Sambre
Spy Cave (French: Grotte de Spy) is located in Wallonia near Spy in the municipality of Jemeppe-sur-Sambre, Namur Province, Belgium above the left bank of the Orneau River. Classified as a premier Heritage site of the Walloon Region, the location ranks among the most significant paleolithic sites in Europe. The cave consists of numerous small chambers and corridors.
Excerpt from Wikipedia: Spy Cave · CC BY-SA 4.0