Audio Stories resources and references:

• “Peak into the Past”

  https://en.wikipedia.org/wiki/Street_art_in_Berlin

  https://en.wikipedia.org/wiki/Berlin_Wall

  https://en.wikipedia.org/wiki/Stasi

  https://en.wikipedia.org/wiki/Economy_of_Germany

• “Medieval District“

  https://en.wikipedia.org/wiki/Nikolaiviertel

  https://en.wikipedia.org/w/index.php?fulltext=1&search=Ephraim-Palais&title=Special%3ASearch&ns0=1