While most reservoirs are found in the open air, this one was deep underground in the heart of the city
Its tower is a famous local landmark, but few get a chance to see inside.
The High Park Reservoir is an amazing Grade II-listed former water storage facility in Toxteth.
Built in 1853, it provided drinking water to a large part of Liverpool and the docks - and is a fine example of Victorian industrial architecture with Cathedral-like arches and 8ft-thick walls.
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Cholera was a big problem in Liverpool during the Victorian era, and with the population growth at the time. A source of clean water was needed, so the reservoir was built.
It was also useful for the nearby docks as it provided a head of water to fight fires.
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The imposing building was a functioning reservoir for over 140 years, initially fed with water from Rivington Pike in the West Pennine Moors. It was then mixed with spring water from Lodge Lane to provide a source of clean drinkable water for nearby residents.
The reservoir was gravity fed, with the looming tower itself operating as a valve and overflow.
It had the capacity to hold approximately two million gallons of water and was in constant use until its closure in 1997.
In recent years it has become a popular venue for events and for filming, with several episodes of Peaky Blinders making use of the atmospheric location.
In 2018, Liverpool-based arts centre FACT took over the space for several weeks as it brought a surreal light and water show, Aurora, using the unusual structure as the basis of a specially-commissioned piece.
The view from the flat roof at the top of the reservoir also provides an almost 360-degree view of the city, including giving an amazing perspective of the bend in the River Mersey.
Today the only way to see the reservoir is during the annual Heritage Open Days event, when places normally off-limits to the public are opened up to visitors.
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