Hans Grothe has sold 700 works to Wella hair-care billionaires for E50 million
Mr Arm, who previously contested his sister's will, now asks that part of the estate goes to auction
Switzerland’s is known for its pivotal presence in the underground network that moves illicitly excavated artefacts from country to country
Most are extremely difficult to redisplay elsewhere
American Express and American Friends of the Louvre are making their mark on the French institution
Promises to be one of the most glamorous exhibitions of the year
After a false start, Tate has a huge selection of works planned for its three-day run
Terry Frost exhibits new works alongside those which inspired them
Video works from a number of top artists are now on show
Tate Britain gives a taste of the work of these young artists
This important addition to Scottish collections includes nearly all of his best multiples
Fondation Vincent van Gogh assembles the surviving paintings in this series
Three concurrent shows explore the many faces of sculpture
This new exhibition explores works inspired by the world of Pop, Rock, and Hip-Hop
Contemporary art museums say their collections are undervalued and at risk
The Museum of Contemporary History provides historical explanations for why war photographers took the pictures that they did
Riley was heavily involved in the curation of this exhibition alongside Paul Moorhouse
