Crossness Pumping Station is a former sewage pumping station designed by the architect Charles Henry Driver for the Metropolitan Board of Works's chief engineer Sir Joseph Bazalgette. It is located at Crossness Sewage Treatment Works, at the eastern end of the Southern Outfall Sewer and the Ridgeway path in the London Borough of Bexley. Constructed between 1859 and 1865 by William Webster, as part of Bazalgette's redevelopment of the London sewerage system, it features spectacular ornamental cast ironwork, described by architectural historian Nikolaus Pevsner as "a masterpiece of engineering – a Victorian cathedral of ironwork". It was decommissioned in 1956. Subsequently the building has been extensively restored and was opened to the public in 2016.