At the new National Portrait Gallery
The abstract art of Ellsworth Kelly
A Futurist family home in Rome
The ageing of Helsinki’s modern architecture
Plus: Gertrude Jekyll’s garden at Munstead Wood, X. Marcel Boulestin’s catering to the masses, reviews of Cecily Brown in New York and Simone Leigh in Boston and a preview of Parcours des Mondes
How to give back looted objects
UK museums are hamstrung by outdated laws around restitution. It’s time for politicians to end the impasse and give them greater autonomy over their collections