The Balver Höhle is the biggest cave used as a cultural venue in Europe. It is located in Balve, Germany.
Wikipedia https://en.wikipedia.org/wiki/Balve_Cave
Official Website https://www.balver-hoehle.de/
Address Helle 2, 58802 Balve, Germany
Coordinates 51°20'21.301" N 7°52'18.673" E
