It was moved to its current position in the 17th or 18th century and was replaced by a replica in 1986. The original stone is now held by the Spelthorne Museum at Staines Library. Reservoirs The twin Staines Reservoirs, to the northeast of the town, were completed in 1902 and have a combined capacity of . They are filled from the Staines Reservoirs Aqueduct, which runs from the Thames at Bell Weir Lock, Hythe End. The two reservoirs are separated by a embankment and, under normal operating conditions, the water level of the northern reservoir is higher than that of the south. During the Second World War, Staines Reservoirs were used by No. 617 Squadron RAF to practise aiming bouncing bombs in preparation for Operation Chastise. The King George VI Reservoir was completed in 1939, but was left unfilled for the duration of the Second World War. In 1942, it was used by the Royal Air Force for Fog Investigation and Dispersal Operation experiments. It was finally opened by King George VI in November 1947 and holds . Town Hall The Town Hall, in the Market Square, was designed by John Johnson in the Renaissance style and was completed in 1880. It replaced a medieval market hall, which was closed in 1862. The building is constructed in white brick with stone dressing with a fish-scale slate roof and the clock was manufactured by Gillett & Bland. The Town Hall was used as the council headquarters until 1976, when Spelthorne Borough council relocated to Knowle Green. In the early 1990s, it was used as an arts centre and, in 2004, it became a wine bar. In January 2018, the building was converted into thirteen residential apartments. War Memorial Staines War Memorial was designed by E. J. Barrett and was installed in the Memorial Gardens in 1920. It takes the form of a statue of the winged figure of Victory and is constructed in Portland stone. The names of 196 men who died in the First World War are inscribed on the plinth, beneath which is an inclined stone tablet listing those who died in the Second World War. The memorial was moved to the Market Square in 2002. Parks and open spaces Church Lammas The Church Lammas is an area of common land to the northeast of the town centre, adjacent to the Lammas Recreation Ground. Between 1988 and 1996, it