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Knowsthorpe, Knostrop or Knostropp is an area of Leeds, West Yorkshire, England, on the River Aire. The spelling "Knostrop" is predominantly used for the large water treatment works in the area. Atkinson Grimshaw painted Knostrop Cut, Leeds, Sunday Night, 1893. The area falls within Temple Newsam ward of Leeds City Council.

The Hunslet Mill and Victoria Works Complex is a series of very large disused mill buildings in Goodman Street in Leeds.