On one of the previous weekends I hung around Berlin, I dropped into the DDR museum. It’s literally around the corner from where I stay and holds a lot of the memorabilia from the East Berlin side when the wall divided the city.
They had plenty of artefacts, everything from cars, school articles, clothing and newspapers and create a stiflingly close atmosphere that makes you feel like you’re transported in time. Perhaps it was also its popularity with people and the fact that the rain brought even more people than usual inside.
I didn’t get the audio guide, but there with plenty of signs to see, and things to interact with, there was enough in the two large sections to keep me busy for a couple of hours.
The DDR museum is found on Karl-Liebknecht-Str. 1 right on the river Spree and directly opposite the Berlin Cathedral.