The Maughan Library (/mɒn/) is the main university research library of King's College London, forming part of the Strand Campus. A 19th-century neo-Gothic building located on Chancery Lane in the City of London, it was formerly the home to the headquarters of the Public Record Office, known as the "strong-box of the Empire", and was acquired by the university in 2001. Following a £35m renovation the Maughan is the largest new university library in the United Kingdom since World War II.
More information on the Wikipedia page 
The website is