"going to the British Museum"
British Museum Reading Room
GNU Free Documentation LicenseBritish Museum Reading Room - Credit: Diliff, Wikimedia Commons

The British Museum housed a library in the famous domed Reading Room. This became part of the British Library in 1973, which has since moved to purpose-built premises at St Pancras in London, while the Reading Room has been restored to its former glory within the British Museum's Great Court.