A sunken world: how a German coal mine turned into a fantastic lake with underwater forests

Where brown coal was once mined, one of Germany’s most unusual artificial lakes—Geiseltalsee—now stretches out. Following the massive flooding of the open-cast mine, an entire world vanished beneath the clear water at depths of up to 80 meters: submerged forests, old roads, and concrete structures. Today, this surreal underwater landscape draws divers from around the globe, eager to witness firsthand the ghostly, time-frozen scenery of a submerged industrial era.