The Collection of Peggy and David Rockefeller review – yours for half a billion

Christie’s, King Street, London
Picasso’s bolshy flower girl is just one of the rare gems to be glimpsed in London before this vast private collection goes under the hammer

A whirl through Vienna’s modernist era, 100 years on

Celebrating a century at the heart of the modernist movement, the Austrian capital is putting on quite a show

Marina Abramović: ‘I am not interested in small questions’

As a new show looks back on her early work, the trailblazing performance artist talks about her extensive career, controversy and sexual harassment in the art world