Berlin's contemporary art showcase opened in 1996 in an old railway station, whose grandeur is a great backdrop for this Aladdin's cave of paintings, installations, sculptures and video art. Changing exhibits span the arc of post-1950 artistic movements – from conceptual art and pop art to minimal art and Fluxus – and include seminal works by such major players as Andy Warhol, Cy Twombly, Joseph Beuys and Robert Rauschenberg.