Museum Ludwig, Cologne

Museum Ludwig sits immediately beside Cologne Cathedral, its distinctive wave-shaped zinc roof echoing the cathedral's twin spires, and holds one of Europe's most significant collections of twentieth-century art. The museum's Pop Art collection, built around a major donation from collectors Peter and Irene Ludwig, is among the largest outside the United States and includes works by Andy Warhol, Roy Lichtenstein, and Claes Oldenburg. Visitors also encounter strong holdings of German Expressionism, Russian avant-garde painting, and an extensive Picasso collection spanning his career from early Cubism to late works. A typical visit through the permanent collection and a temporary exhibition takes two to three hours, with the museum's café offering a pause overlooking the Rhine. Weekday mornings are the quietest time to visit, since afternoons draw cathedral visitors spilling over into the museum, and the first Thursday of each month brings an evening opening until 10 PM with a livelier, later crowd. Photography without flash is generally permitted in the permanent collection galleries, and the museum's floor-to-ceiling windows on the upper level frame views of the cathedral's flying buttresses that are popular with visitors. English-language audio guides help contextualise the collection's postwar European and American art in relation to the political history of divided Germany, a theme that runs through several of the museum's acquisition stories.