The Berlin Wall separated East and West for 28 years, two months and 28 days. It divided the city, ran through buildings, made streets impassable, tore families, friends and lovers apart. But where exactly did the wall run? The app 'The Berlin Wall' gives a detailed answer. The exact course of the former wall is marked on an interactive map. At historically significant locations between the Brandenburger Tor and Potsdamer Platz, there are photos, audio clips and texts available on the subject. A