Chinma Johnson-Nwosu

Climate activists in Vienna pour 'oil' over Gustav Klimt painting

Curators at Leopold Museum say that Letzte Generation's protest against fossil fuel projects left no damage to either the picture or the original frame

Six shows to see in London during UK Black History Month

From wool sculptures inspired by Malcolm X to Sonia Boyce's first-ever commercial gallery solo show

Collectorsinterview

'You snooze, you lose!' Collector Bimpe Nkontchou on the artwork that got away

The head of W8 Advisory and a key networker in the African art scene talks about her enduring love for a Ben Enwonwu work and her dream dinner party guests

The must-see exhibitions celebrating Brazilian art on the country's bicentennial

Shows on view in museums and galleries across New York, São Paulo, Rio de Janeiro, Paris and London, from the Brazilian art biennial at the Museu de Arte Moderna de São Paulo to Bárbara Wagner and Benjamin de Burca at the New Museum

Fulya Erdemci, the Turkish curator and former director of the Istanbul Biennial, has died

She will be remembered for her commitment to exploring the relationship between public space and contemporary art

Three new Modigliani sketches discovered beneath one of the artist’s early nudes

The works were discovered during preparatory forensic analysis for a new exhibition in Philadelphia

Eleven royally arty things to do in the UK over Queen Elizabeth II's platinum jubilee weekend

From Sex Pistols album covers to a tower moat full of flowers, here are the best exhibitions, installations and events to check out over the long bank holiday