Geologischer Garten Bochum is a modest but rewarding outdoor stop for anyone curious about the geology beneath the Ruhr. The garden exposes rock layers, coal seams, faults, and fossil-bearing strata, turning a small patch of Querenburg into a readable cross-section of the region's industrial landscape.
It is not a grand museum experience, and that is part of its charm. Pair it with the Deutsches Bergbau-Museum if you want the full Ruhr mining story, or use it as a quiet walk where the labels and exposed stone make the ground under Bochum feel less abstract.