+The Ruhr Area is a sprawling [metropolitan region](/wiki/metropolitan_region) in [Germany](/wiki/germany), historically the industrial heart of Europe. Once dominated by coal mines and steelworks, its landscape has transformed into a vibrant center of culture, green spaces, and modern innovation.
+## See also
+- [Industrial Revolution](/wiki/industrial_revolution)
+- [Coal](/wiki/coal)
+- [Steel](/wiki/steel)
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