London Museum

The London Museum, established to illustrate the history of London, was inaugurated on 21 March 1912 by King George V with Queen Mary and Princess Mary and Prince George in temporary accommodation at Kensington Palace. It opened to the public on 8 April, admitting more than 13,000 visitors during the day. Two years later the collections were moved to Lancaster House in St James's, and the museum remained there until World War II.

In 1975 the London Museum was amalgamated with the City of London's Guildhall Museum to form the Museum of London, which opened to the public in a new building in the City of London in 1976.

More information on the Wikipedia page.