Works at Art Basel and beyond aim to stir the conscience and raise funds in aid of the “biggest challenge of our time”

For Art Basel, the artist has used cutting-edge technology to update hippie-chic, eco-friendly house

Gallery has partnered with New York’s Guggenheim on survey of the region

Exhibition will feature more than 40 works and is billed as the artist’s most comprehensive in the UK to date

Work was bought at C.R.W. Nevinson 1916 exhibition, attended by Winston Churchill and George Bernard Shaw

Contemporary art foundation would host two exhibitions a year and is expected to bring 200 visitors a week

The late critic was an expert in the auction house’s Old Masters department

Sculpture could be returned by the end of the year—providing a secure site is found

Plight of thousands fleeing war zones inspires creative humanitarian responses

Chair of Smithsonian’s National Museum of the American Indian calls on owners of disputed objects to return them

Culture minister pronounces ‘insane’ Urban Nation project perfect for Berlin

Lu Hengzhong has been filming at the refugee camp in Greece for past 12 weeks

Streamlined fair offers collectors art priced between £20 and £1m

Chinese artist's show at Cycladic Museum of Art in Athens includes a flag depicting drowned Syrian toddler Aylan Kurdi

City Museum is the latest institution to get an upgrade in the Finnish capital, but will the Guggenheim follow?

Auction specialist left her position as head of contemporary art at Sotheby’s last month

Performers face charges of inciting protests and insulting state institutions

Los Angeles agent and Dublin dealer Jonathan Ellis King sued artist for declaring jute sack works were not authentic

British artist installs huge rotating neon—and his next plan is to turn the Armory inside out

Star Wars creator could see plans thwarted by case brought by local non-profit Friends of the Parks

Cartoonist had originally been sentenced to 12 years and nine months for criticising Iranian government

Insurance and security costs of keeping works are partly to blame for sale

Chinese artist documents humanitarian crisis from Lesbos to Lebanon

Lakshmi Mittal and Roman Abramovich have slipped down the Sunday Times ranking

Joseph Tierney had accused Italian fashion house and its creative director of using his work in clothing designs, including a dress worn by Katy Perry to Met gala

Four art fairs opened in the Belgian city this week, including newcomer Independent Brussels and longstanding Art Brussels

Auction houses continue to expand web platforms but dealers are slower to adapt, according to annual Hiscox report

UK artist says jetliners could be interred in the US, South Africa and the demilitarised zone between North and South Korea

Website will provide a platform for contemporary artists to show—and possibly sell—works