Large comprehensive library of architectural photos, even scans of original blueprints. Photos are dated and so can be excellent for historical accuracy. Use for research purposes only, check terms and conditions if you want to use anything in production.

Fantastic resource and well organised. Great for Graphics research. Use for research purposes only, check terms and conditions if you want to use anything in production.

Amazing historial archive of architectural photos, aerial photos and more. The Red Box Collection is particularly useful for us. Use for research purposes only, check terms and conditions if you want to use anything in production.

Extensive archive of many forms of media. The Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey is particularly useful for us. Images can be downloaded in large TIFF files for incredible quality. Use for research purposes only, check terms and conditions if you want to use anything in production.

Good stock website for architectural finish references.