Buildings ARCHITECTURE 1,776 History 873 Architecture 804 Reference 769 Professional Practice 756 Adaptive Reuse & Renovation 754 Landmarks & Monuments 732 Buildings, structures, etc 594 Histoire 536 General 525 Constructions 514 Public, Commercial & Industrial 446 HISTORY 253 Architecture and society 241 Design and construction 229 Religious 216 Residential 193 Architecture et société 184 City planning 184 Construction 151 HOUSE & HOME 148 TECHNOLOGY & ENGINEERING 147 Energy conservation 141 Architecture, Domestic 140 Design & Construction 125 Architektur 122 Environmental engineering 113 Économies d'énergie 103 Social aspects 102