In urban planning the history of a community is usually reflected in a juxtaposition of
different quarters shaped by the spirit of their respective epochs. The fact that there are
ensembles from one and the same time in a city which are to be understood as construction and
counter-construction is a trademark of Berlin the formerly divided German capital. In
particular there are two listed ensembles for this double Berlin: the Karl-Marx-Allee in the
eastern part of the city built in the 1950s and the Hansaviertel in the west which was built
in 1957 for the International Building Exhibition.
