Kempton Steam Museum is home to the world’s largest working triple-expansion steam engine. It stands as high as four stacked double-decker buses and along with its identical twin, pumped vast volumes of London’s drinking water from 1929 to 1980.

The museum and its engines are housed within a grand Scheduled Monument located at Thames Water’s Kempton Park Pumping Station in south-west London. The mighty steam engines have been preserved since 1995 by the Kempton Great Engines Trust to ensure that their engineering magnificence is treasured for generations to come.

Kempton Steam Museum is open on several weekends throughout the year when the ‘Sir William Prescott’ engine can be seen in steam.