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Photo: A.Savin, CC BY-SA 3.0 via Wikimedia Commons
The Bergheider See, south of Finsterwalde near Lichterfeld in the county of Elbe-Elster in Germany, is a flooded pit from the former open cast mine of Klettwitz-Nord, northeast of the Lower Lusatian Heath. The lake was named after the old village of Bergheide, which had to be abandoned for the brown coal pit.
© OpenStreetMap contributors
This gargantuan industrial machine whose purpose it was to move the overburden out of the way to access the coal is sometimes nicknamed "Lusatian horizontal Eiffel tower" due to its impressive size and construction mostly from steel. While there were plans to dismantle it and sell it for scrap as it was no longer needed after the collapse of the GDR, cooler heads prevailed and turned it into an industrial heritage museum. School kids throughout Brandenburg have excursions to see this impressive machine and learn about the mining history of their state.
EuroSpeedway Lausitz
Built on top of part of the former open pit mine Meuro (filled up with overburden) this automotive racing circuit has held numerous motor sports events in addition to concerts and the likes. During important events, there is a bus-shuttle from nearby Senftenberg station.