Margaret Visser: The Geometry of Love
Arts, Architecture, History, Periods and Styles - Margaret Visser: The Geometry of Love. A book exploring the basilican church of Sant Agnese fuori le Mura, Rome, rebuilt 625-38 to replace a 4th-century church.
http://www.margaretvisser.com/
The Noble Sanctuary
Arts, Architecture, History, Building Types - Noble Sanctuary. A guide to Al-Aqsa mosque.
https://www.noblesanctuary.com/
The United States Capitol
Arts, Architecture, History, Building Types - The United States Capitol. Official site maintained by the Architect of the Capitol provides historic and current information on the function and architecture of the Capitol, House and Senate buildings, and surrounding grounds.
https://www.aoc.gov/
FRIENDS OF FRIENDLESS CHURCHES
Arts, Architecture, History, Building Types - Friends of Friendless Churches. Cares for nearly 30 historic and redundant places of worship in England and Wales.
http://friendsoffriendlesschurches.org.uk/
Churchmouse Website
Arts, Architecture, History, Building Types - Churchmouse. Peter Fairweather's guide to ecclesiastical architecture, stained glass, church monuments and other funerary monuments such as cast-iron grave markers.
https://www.churchmousewebsite.co.uk/