Zollverein Coal Mine Industrial Complex
wikipedia ( en.wikipedia.org/wiki/Zollverein_Coal_Mine_Industrial_Com... ) :
The Zollverein Coal Mine Industrial Complex (German : Zeche Zollverein) is a large former industrial site in the city of Essen, North Rhine-Westphalia, Germany. It has been inscribed into the UNESCO list of World Heritage Sites since December 14, 2001 and is one of the anchor points of the European Route of Industrial Heritage.
After it had been closed down in 1993, the coking plant was planned to
be sold to China. The negotiations failed and it was subsequently
threatened to be demolished. However, another project of the state of
NRW set the coal mine on a list of future exhibition sites resulting
in first gentle modifications and the cokery also became an official
memorial in 2000.
On its 25th session in December 2001, the United Nations Educational, Scientific and Cultural Organization (UNESCO) declared both the sites of the shafts 12 and 1/2 and the cokery a World Heritage Site.
The first coal mine on the premises was founded in 1847, mining
activities took place from 1851 until December 23, 1986. For decades
starting in the late 1950s, the two parts of the site, Zollverein Coal
Mine and Zollverein Coking Plant (erected 1957−1961, closed on June
30, 1993), ranked among the largest of their kinds in Europe. Shaft
12, built in Bauhaus style, was opened in 1932 and is considered an
architectural and technical masterpiece, earning it a reputation as
the “most beautiful coal mine in the world”.
See also : www.zollverein.de/#/ and