Has a Mondrian work been exhibited upside down for 75 years?
A photograph taken in the Dutch artist’s studio shortly after his death suggests "New York City I" has been displayed the wrong way round since 1945
The limitless artistic possibilities of video games, from refugee journeys to wearable wombs, showcased in German exhibition
A new show curated by Hans Ulrich Obrist chronicles decades of artistic innovation employing the tools and technologies of video games
Angelica Kauffman, who was lauded in her lifetime but later largely ignored by art historians, gets new show
Travelling Kunstpalast exhibition will feature the only known ceiling paintings created by a woman in the 18th century
Heirs of persecuted dealer Alfred Flechtheim reject provenance project over restitution claims
The Jewish dealer’s relatives say participating museums are not dealing satisfactorily with their claims
Beuys widow wins in court over contested performance piece pictures
Museum Schloss Moyland lose out again in appeals court
German collector buys Delvoye’s Art Basel truck for company headquarters
The largest piece ever made by the artist
The endless enigma: Dalí and the magicians of multiple meaning
The 250 puzzle pictures, revolving pictures, and distorted and double images dating from the 11th century to the present day, brought together for this exhibition (until 9 June), are ambiguous in the very best sense.
The Rhineland is still the hub for German contemporary art collectors
This is the richest area of Germany, and it has a buoyant cultural life; but the expense of it is beginning to drive the artists out