Interesting study on how people use all that green space in Berlin.

“The Wall Park, where the borderline between East and West splitted the city in two pieces from 1961-1989 functions as a gathering place for the younger generation before night clubbing”

Done by the organization Urban Dialogues:
The non-profit art organization metropolitan urban
dialogues is treating questions of urban change and
flux during the last twelve months through a series of
site-specific projects in Berlin and participatory arts
projects in other European metropolis.