The German Mining Museum in Bochum is a fascinating look into the history of mining in Germany. Visitors can explore the museum's extensive collection of artifacts, documents, and photographs that tell the story of the country's mining industry. Through interactive exhibits, visitors can learn about the tools and techniques
From Wikipedia
The German Mining Museum in Bochum or DBM is one of the most visited museums in Germany with around 365,700 visitors per year (2012). It is the largest mining museum in the world, and a renowned research establishment for mining history.