Rowan Moore, writing for The Guardian, mentions in his list of the coolest urban parks, how Landschaftspark Duisburg-Nord, once an ironworks dating back to the 19th century, is now a cool industrial heritage park. Its appeal? Those old industrial buildings lit up at night, giving visitors a surreal experience.

Before there was the High Line the landscape architect Peter Latz created another park out of derelict industry, on a far larger scale. A contaminated ensemble of collieries and steelworks has been populated with art, culture and places of work. Concert venues and climbing walls have been formed out of the steel frames of old factories, hulks of blast furnaces and slag heaps. Particularly smart is the approach to cleaning up the filthy land: it is allowed to take its time, with water and planting that assists the process forming part of the design of the park.