History of architecture 48 Landscape archaeology 42 Industrial archaeology 35 Industrialisation & industrial history 28 Landscape art & architecture 17 Landscape architecture and design 12 Architecture 10 City & town planning - architectural aspects 9 Urban & municipal planning 9 Archaeology 8 History of art 8 Industrialisation and industrial history 7 Urban and municipal planning and policy 7 City and town planning: architectural aspects 6 History of art / art & design styles 6 Archaeology by period / region 5 Architecture: professional practice 5 General and world history 5 History 5 History of engineering and technology 5 Human geography 5 African history 4 Architectural structure & design 4 Architectural structure and design 4 Architecture: public, commercial and industrial buildings 4 Technology: general issues 4 Urban communities 4 Migration, immigration & emigration 3 NA Architecture 3 Theory of architecture 3