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Gelsenkirchen (UK: , US: , German: [ˌɡɛlzn̩ˈkɪʁçn̩] (listen); Westphalian: Gelsenkiärken) is the...
York is a cathedral city and unitary authority area, at the confluence of the rivers Ouse and...
In geology, a boulder is a rock fragment with size greater than 256 millimetres (10.1 in) in...