Our pick of the most significant new gifts and purchases to enter museum collections worldwide, from a totemic Klansman to the art of colonial Latin America

The painting, thought to be the second version of the Baroque artist’s Judith Beheading Holofernes will be auctioned this June with an estimate of £86m-£129m

From the surreal sights of Dorothea Tanning at Tate Modern to the trompe l’oeils and Parisian scenes of Louis-Léopold Boilly at the National Gallery

Human extinction and planetary devastation are tackled in the XXII Triennale di Milano—but the message is one of hope through innovation

More than two-thirds of Antonello da Messina’s 35 accepted autograph works are reunited for a show at Palazzo Reale

Hauser & Wirth has helped to develop “sustainable model” for Chillida Leku, which partially closed amidst Spanish economic crisis

Senior curator Margaret Maitland reveals the stories behind some of the key exhibits in the new Ancient Egypt Rediscovered gallery

The £80m masterplan has created 50% more public space and unveiled 6,500 forgotten objects

Our pick of the most significant new gifts and purchases to enter museum collections worldwide, from Dalí’s lobster telephone to a bumper gift of indigenous art

Drawings from the Royal Collection go on show around the country this week before larger surveys in London and Edinburgh later in the year

Exhibition aims to reassess French artist’s reputation and revel in depth and detail of his work

Our pick of the most significant new gifts and purchases to enter museum collections worldwide, from a vintage Hawaiian shirt to an heirloom Chinese art collection

Muzeum Susch aims to bring a “disruptive outlook” to the historic Engadin valley pilgrimage site

Exhibition of Europe’s greatest female Old Master will include museum's freshly conserved acquisition

From a busy Bruegel blockbuster to a whimsical Wes Anderson world conjured from the Kunsthistorisches Museum archives

We look back at ten significant gifts and purchases that entered public collections in 2018

Museums are facing greater scrutiny over sponsorship and the artists they choose to display

The conservation of masterpieces is happening in the full glare of the public

The people, places and things that had a year to remember—or to forget

The English architect’s “jewel box” weekend retreat has been restored to its original condition

Half of movable works by Renaissance master included in St Petersburg show

Decision to take case to court prompted a public outcry and an online petition

Museum aims to clean and analyse all 28 of its vedute paintings of Venice by spring 2020

Egyptian government hopes vast museum near Pyramids of Giza will win back international tourists

Supported by prominent figures in its day, the little known movement is at last being rescued from obscurity

New exhibition in Florence decodes the “startlingly radical” scientific ideas of the Codex Leicester

Bucharest’s new Muzeul de Arta Recenta emphasises artists who worked outside the structures of the Communist regime

Structure will be re-installed as part of Therme Group's art and architecture initiative

Controversial transfer of Royal Photographic Society collection from Bradford has led to a growing "culture of research" at the museum

Show of artist whose work “undermines old idea of Surrealism being about the objectification of women” opens in Madrid before travelling to London