“Berlin ist eine Reise wert”—Berlin is worth a trip. That tepid marketing blurb from the 1950s was meant to lure reluctant tourists to the divided city still recovering from the devastation of World War II. No such encouragement is needed today. Twenty-five years after the destruction of the infamous Berlin Wall, tourism is a leading industry in Germany’s booming capital. Last year alone, more than 11 million people visited.