Rear entrance to the Nightingale coal mine in the former Dünkelberg Quarry, Muttental, Witten, NRW, Germany.

Size: 2772px × 4175px
Location: Witten, NRW, Germany.
Photo credit: © David Davies / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: coal, duenkelberg, europe, german, germany, historic, history, industry, museum, muttental, nachtigall, nightingale, north, nrw, quarry, rhine-westphalia, rocks, ruhr, ruhrgebiet, seam, sightseeing, visitors, witten, ünkelberg