Banksy’s 2005 installation inside the British Museum was called Peckham Rock.
The work was a deliberately crude fake prehistoric cave painting showing a hunter pushing a shopping trolley. Banksy secretly installed it in the museum’s Roman Britain gallery, where it reportedly remained unnoticed for several days. The placement turned an apparently ancient object into a commentary on consumer culture and institutional authority.
After the discovery, the British Museum acquired the piece and displayed it alongside its own collection. The episode is often cited as an example of Banksy’s use of unauthorised installations to challenge museums and established definitions of art.
Peckham Rock is sometimes confused with Banksy’s other museum interventions, including a work secretly placed in New York’s Museum of Natural History. The British Museum object is specifically associated with the 2005 Peckham Rock stunt.