Rossbret UK Institutions
- A gazetteer of UK workhouses and voluntary or subscription hospitals, with some asylums, orphanages, almshouses and prisons. Background information on the poor law and history of medicine.
- http://www.institutions.org.uk/

Underground Buildings: Architecture and Environment
- An exploration of the viability of underground buildings in contemporary America, with some discussion of international examples.
- http://www.subsurfacebuildings.com

Metro Arts and Architecture
- Dozens of subway cities which are remarkable for their interesting stations. Descriptions and photographs from Metro Bits by Mike Rohde.
- http://mic-ro.com/metro/metroart.html

Round Barns
- Dale Travis provides photographs and locations of round and octagonal barns across the United States and Canada.
- http://www.dalejtravis.com/barn/rbarns.htm

Church House South Tawton, Devon, UK
- History, location, usage and restoration project of a 15th-century village hall built of granite and thatch. An outstanding example of a special type of medieval community building.
- http://www.thechurchhouse.org.uk/

Railroad Stations
- Explore the architecture and history of railroad stations around the world. Zane Riester includes a bibliography.
- http://www.rpmotoring.com/stations/

Great Lodges
- Showcases books, lectures and workshops by Christine Barnes on the most important lodges in North America. Includes a database with photographs and concise details.
- http://www.greatlodges.com/

The Pigeon Cote of Old
- Pigeon Cote hosts a complete annotated version of Cooke's Book of Dovecotes, which is an illustrated guide. Also bibliography and links.
- http://members.aol.com/Duiven/dovecote/dovecote.htm

The Workhouse
- Peter Higginbotham explores in depth the history of the British buildings where employment was provided for the destitute. Includes a gazetteer by country and county.
- http://users.ox.ac.uk/~peter/workhouse/