Reja
Burgos Cathedral
The Cathedral of Burgos has mathematical foundations. The architects were aware of mathematics. The book "Teseros Matematicos de la Catedral de Burgos" explains the mathematics behind its architecture.
Video on YouTube:
- https://www.youtube.com/watch?v=xPPm_gI3Aww
- https://www.youtube.com/watch?v=VNQVy7MDbJM Dutch edition of this GeoGebra Book is available here: https://www.geogebra.org/m/y4ck2x6e
- https://www.youtube.com/watch?v=aVT9vUcvmcU
