April 25, 2007
Warsaw can boast of only one object entered on the UNESCO World Cultural Heritage List-the Old Town, rebuilt after the destruction of World War II. For some years the city has been trying to enter the Warsaw Filters-a unique example of industrial heritage in continuous operation for 120 years-on the list.
Part of the Warsaw water system designed and built in 1883-1886 by British engineer William Lindley, the Filters are Warsaw's oldest water supply station. They are located in an area bounded by Koszykowa, Filtrowa, Nowowiejska and Raszyńska streets.
They were built with the use of the latest technology of the time, with much attention to detail. Even the smallest structures were built from top quality material. The basic building material was a specially burnt, humidity-resistant brick and white-glazed brick.
The Filters started to provide water to Warsaw residents July 3, 1886, and have operated continuously since then.