On the Underground London/Berlin (Saturday Review)

After a short journey by train, you arrive in Berlin at Friedrichstraße central station. Wasting no time, you immediately take the stairs down to the U-Bahn platforms. You want to see as much of this metropole as possible, not just the usual tourist sites, but also the more regular stations that locals would travel to. Your first destination is Zitadelle in Spandau, after which you want to see the famous Potsdamer Platz. However, as you arrive on the platform, you notice there are no trains running. It turns out that you have to take a taxi to Jungfernheide, after which you can take the yellow line to Zitadelle, then back to Jungfernheide and another taxi to Zoologischer Garten, where you can catch the white line. It seems weird, but this is On the Underground London/Berlin by LudiCreations.