Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
https://www.nps.gov/articles/the-octagon-of-washington-d-c-the-house-that-helped-build-a-capital-teaching-with-historic-places.htm
https://gatorpreservationist.wordpress.com/2015/05/06/octagon-house-washington-d-c/
https://sah-archipedia.org/buildings/DC-01-FB21
https://www.istockphoto.com/es/foto/washington-dc-estados-unidos-31-de-enero-de-2006-la-casa-octágono-por-william-thornton-gm641966454-116327267
https://www.mortarr.com/photo/view/images/project_gallery_images/the-octagon-washington-dc-treaty-room-table-and-seating/40044
https://www.mortarr.com/photo/view/images/project_gallery_images/the-octagon-washington-dc-interior-front-entrance-hall/40047
https://www.oldtownhome.com/2017/4/21/More-than-One-Side-to-the-Story-in-the-Octagon-House-Museum/
https://www.mortarr.com/photo/view/images/project_gallery_images/the-octagon-washington-dc-main-staircase-2nd-level-room-doors/40059