Theory of architecture Architectural structure & design 5 Architecture 3 Environmentally-friendly architecture & design 3 History of architecture 3 Architecture: professional practice 2 City & town planning - architectural aspects 2 Sociology 2 Sociology & anthropology 2 Urban communities 2 Art forms 1 Building construction & materials 1 Conservation of buildings & building materials 1 Cultural studies 1 Earth sciences, geography, environment, planning 1 Educational: Art & design 1 Geology & the lithosphere 1 History of art / art & design styles 1 Inventions & inventors 1 Literature: history & criticism 1 Sociology: family & relationships 1 Sociology: work & labour 1 Technical design 1 Theory of art 1 Urban & municipal planning 1