Public artwork of the week Bottle of Notes by Claes Oldenburg and Coosje van Bruggen Middlesbrough’s excellent MIMA remains closed like all galleries, but if you’re out for a walk you can see the city’s engaging sculpture created in homage to local boy Captain Cook by one of America’s great modern artists. • Centre Square, Middlesbrough. Also showing Avebury Stone Circle The neolithic artworks that surround the village of Avebury are visible from many vantage points and once experienced will never be forgotten. • Avebury, Wiltshire. Memorial to Heroic Self-Sacrifice This monument to ordinary people who gave up their lives for others is startling and unforgettable. Instead of another statue, the Victorian sculptor and painter GF Watts devised a wall of ceramic plaques recording the selfless bravery of servants who ran into burning houses and apprentices who dived into rivers. • Postman’s Park, London. Do-ho Suh’s Bridging Home, London This replica of the artist’s childhood home in Korea floats uncannily over a city street, balanced in the middle of a pedestrian bridge, confronting anonymous office blocks with an intimate fragile dwelling. • Wormwood Street, London. Corpus Clock There’s a timely sense of the uncanny about this elaborate Einsteinian clock on the outside of Corpus Christi College with its sinister grasshopper that marks reality’s mad leaps. • 58 Trumpington Street, Cambridge. Image of the week Our new normal walk, by Gilbert & George Renowned artist couple Gilbert & George have famously always fed their imaginations by strolling around London. Now confined to home by lockdown, they have created an Instagram diary of their new routines for exercise and relaxation – tinged with their customary humour. What we learned Rachel Whiteread said artists are struggling to work amid Covid uncertainty W Eugene Smith highlighted the heroic work of a Colorado media in the 1940s … … and a vital art project about health workers shines a light on today’s frontline … while Lewis Khan has documented London’s healthcare system – from cleaners and surgeons to scrub nurses Eleven leading photographers have documented their confinement … … and Guardian readers captured coronavirus-themed street art Forget Titian! Why this might be digital art’s big moment Our Great British art quiz visited Exeter, Dundee, Norfolk and London From Brexit vases to Beyoncé’s butterfly ring – the V&A’s director shares his favourite artefacts … … and the V&A is to collect signs made during lockdown Rowan Moore took a virtual tour of world’s top 10 new architecture projects The museums of Europe have begun reopening their doors – what’s it like seeing masterpieces anew? Critic Hal Foster weighs in on oppositional art in the age of Trump Portrait of studious woman revealed to be of Millicent Fawcett Coronation Street double acts are reunited on Royal Mail stamps Photos of a royal scandal-diverting PR trip got their first online showing Architect Frank Matcham’s plush theatres are the work of a stage visionary ‘Hyper-resolution’ image of Rembrandt painting aids restoration restart Victor Skrebneski captured the stars at their most vulnerable – from Bowie in the nude to Bowie in black Justine Kurland spent five years following American girls in the wild Masterpiece of the week Mummy Portrait of an Unknown Woman, ancient Egyptian, about AD160-170 This woman is as alive and immediate as if she were taking a selfie – but this painting comes from the covering of her wrapped mummy, perfectly preserved in Egypt’s dry sand. What an amazing portrait. She looks at you with fierce intelligence from big, dark eyes. She’s electrically characterful, proud of the wealth embodied in her fine earrings, avid for life – but if the picture is accurate, she died young. Egyptian art and the death rituals it served were millennia old when this was painted. Egypt was part of the Roman empire and in this portrait its ancient customs merge with a very Roman interest in depicting individuals. The result is more haunting than any mummy horror film. • At the British Museum, London. Don’t forget To follow us on Twitter: @GdnArtandDesign. Sign up to the Art Weekly newsletter If you don’t already receive our regular roundup of art and design news via email, please sign up here.