Berlin on its way from a medieval Wendish Fishermen's village to a powerful metropolis and imperial capital was tragically "condemned always to become and never to be" (Karl Scheffler: Berlin. Ein Stadtschicksal, 1910). This famous and much quoted statement by Scheffler on the cultureless Wilhelminian city might prove that architectural heritage and the value of monuments of the past never was prominently placed on the agenda of architecture culture in Berlin. Almost every turn of events in the dramatic 20th century history came with a promise for a radical new architectural beginning without closer consideration of the existing urban fabric and its heritage values. In this class the architecture culture of the city will be analyzed along these turns and its consequences for architectural heritage. How did these turns contribute to the contemporary topography of monumental heritage sites? Particular emphasis will be put on cases of "uncomfortable" heritage and more recent cases of buidlings which are shortlisted for heritage status. The aim of this course is to understand better how the value of architectural heritage relates to values of the society as a whole. The ideological framings of architecture politics from Willhelminism to totalitarian Stalinism, from Nazi-Ideology to the East-West-Conflict in Berlin created a palimsest of heritage sites as markers of multiple histories of the 20th century.