Extension of the German Mining Museum, Black Diamond, Bochum, Ruhr area, North Rhine-Westphalia, Germany, Europe

architecture area attraction attractions basin black bochum building buildings cultural culturally culture cultures diamond europe european extension exterior exteriors federal frg german germany historic historical historically history industrial industrial industry mine mines mining mining modern museum museum museums nobody north nrw of outdoor photo photos plant plants republic rhine rhine westphalia rhine westphalian ruhr seeing shot shots sight sights site sites the tourist view views westphalia westphalian worth