History Politics and government Social conditions Political culture 10 Social aspects 9 Berlin Wall, Berlin, Germany, 1961-1989 7 Communism 5 Máis ... Boundaries 4 Cold War 4 German reunification question (1949-1990) 4 Political aspects 4 Authority 3 Dictatorship 3 Ecology 3 Effect of human beings on 3 Environmental conditions 3 Ethnic relations 3 Government policy 3 Land use 3 Landscapes 3 Minorities 3 Nature 3 Opposition (Political science) 3 Power (Social sciences) 3 Social policy 3 Tourism 3 Walls 3 Architecture 2 Architecture and society 2 City planning 2 menos ...