Northern Europe cruise holidays are full of memorable experiences from Hamburg's thought-provoking Neuengamme Concentration Camp Memorial to Amsterdam's art-lover’s wonderland, offering the chance to see world treasures galore. Museumplein, in Amsterdam, is home to the incredible Van Gogh Museum, the vast Rijksmuseum and the Stedelijk Museum of Modern Art, all set around a splendid green space. While, Rotterdam's historic old port area boasts windmills, museums and canal houses now hosting cosy shops, art houses, trendy cafés and artisan breweries.