Fantastique beasts: cult art from the Lalannes’ private collection to go on sale

Surreal works from the home of François-Xavier Lalanne and his wife Claude expected to fetch up to £20m

Basquiat and Haring paintings to go on show in blockbuster NGV exhibition

Crossing Lines will feature more than 300 works by the quintessentially 1980s artists

Damien Hirst’s 60ft headless demon statue towers over new club in sin city

The bronze sculpture, Demon With Bowl, is the centerpiece of Kaos, the new club at the Palms Casino Resort in Las Vegas

‘We never thought it would happen’: Thomas Heatherwick’s $200m gamble

The British designer has landed in New York with the Vessel, an extravagant 150ft-tall structure, the most talked about element of Hudson Yards

From Hepworth to Rodin: UK sculpture collection to be catalogued online

Thousands of publicly owned artworks to be listed in database over next two years

From foil-wrapped glaciers to the Alpine storm cyclist: the artists fighting climate change

After too long a silence, art is finally tackling global warming. Here are the big players – including the artist who’s lighting up Alaska