The Museum of London is a museum in London, covering the history of the city from prehistoric to modern times, with a particular focus on social history. It was formed in 1976 by amalgamating collections previously held by the City Corporation at the Guildhall Museum and of the London Museum. From 1976 to 2022, its main site was located in the City of London on London Wall, close to the Barbican Centre, as part of the Barbican complex of buildings created in the 1960s and '70s to redevelop a bomb-damaged area of the city. In March 2015, the museum revealed plans to move to the General Market Building at the nearby Smithfield site. Reasons for the proposed move included the claim that the current site was difficult for visitors to find, and that by expanding, from 17,000 square metres to 27,000, a greater proportion of the museum's collection could be placed on display. In December 2022, the museum permanently closed its site at London Wall in preparation for reopening in 2026 at Smithfield Market as the London Museum.