Have you ever seen a spherical betonblockhouse?
It's not a photo by fisheye-lens, you can find this house in Gropius-city in Berlin, among a lot of other high-rise betonblockhouse (projected by Walter Gropius). Christiane F lived in this spherical one.
Christiane became heroin-dependent and prostitute when she was 14years old. The Film "Christiane F." is based on her autobiographical book "Wir Kinder vom Bahnhof Zoo" ("We children of Zoo Station"). You can find the movie under this link, it's really sad but it worths to watch it.
Christiane F. [full movie in english]
The soundtrack album to the film is genial, composed by David Bowie. Bowie played himself in the movie.