THE RIVER Thames, London's very reason for existence, is the star of a new exhibition by English Heritage, which is showing at the Kew Bridge Steam Museum in Brentford.

The exhibition Liquid History', provides a window on the story of the Capital by revealing a selection of previously unseen photographs, some dating back almost 150 years.

The exhibition features the work of early photographic pioneers as well as some of the great photographers of the 20th century. It gives a tantalising glimpse of English Heritage's public archive, the National Monuments Record, whose unparalleled collection dates from the 1850s to the present day.

The exhibition runs from March 11 to April 12.