From Warnemunde, visit Berlin. Berlin was the capital of the Kingdom of Prussia, the German Empire, the Weimar Republic, the Third Reich, and reunified Germany. It has long been a world capital of art, culture, and architecture. It is also the highlight of many a European cruise. Abounding in such riches, Berlin is full of overwhelming choices. Try starting with the icons and follow your instincts – the Brandenburg Gate, Checkpoint Charlie, or the Jewish Museum, whose jagged architecture will leave you shaken and moved.