• From tonight (and across this weekend), museums all over Greater London will be opening their doors after usual closing time as part of the annual Museums at Night event. Among those institutions taking part in the event, produced by Culture24, are such well-known icons as the British Museum, Tower Bridge and The National Gallery as well as lesser known establishments like Queen Elizabeth’s Hunting Lodge in Chingford, Southside House on Wimbledon Common and the Grant Museum of Zoology in central London. The October event follows an earlier Museums at Night in May. For the full programme of events, see www.museumsatnight.org.uk.

• Roman London is the subject of a new exhibition at the City of London Corporation’s Guildhall Library. Londinium AD43 features the work of photographer Eugenio Grosso who takes the visitors on a photographic journey through time from London’s foundations to its present. The display shows how much of London’s Roman settlement has been preserved and features photographs of locations once home to significant London sites. Runs until 31st March. For more, see www.cityoflondon.gov.uk/things-to-do/guildhall-library/Pages/default.aspx

• More than 75 portraits in all media by Spanish artist Pablo Picasso can be seen at the recently opened Picasso Portraits exhibition at the National Portrait Gallery. Including well-known masterpieces and some works never seen in Britain before, the works include a group of self-portraits as well as caricatures of Picasso’s friends, lovers, wives and children and images he created inspired by artists of the past. Runs until 5th February. Admission charge applies. For more, see www.npg.org.uk.

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