A mecca of contemporary art, Museum Ludwig presents a tantalising mix of works from all major phases. Fans of German expressionism (Beckmann, Dix, Kirchner) will get their fill here as much as those with a penchant for Picasso, American pop art (Warhol, Lichtenstein) and Russian avant-garde painter Alexander Rodchenko. Rothko and Pollock are highlights of the abstract collection, while Gursky and Tillmanns are among the reasons the photography section is a must stop.