Ключевые слова: 21, architecture, archive, badenwurttemberg, blue, book, buecherei, building, city, concrete, construction, cube, cubic, culture, education, exterior, facade, futuristic, germany, hardcover, information, knowledge, learning, library, lifestyle, literature, modern, new, paper, people, person, public, read, room, s21, school, sky, stadtbibliothek, student, study, studying, stuttgart, sunshine, university, volume,