[2] The building was donated to the Catholic organisation Mensajeros de la Paz (Messengers of Peace) to complete its construction after his death.

[3] Although the building is called a "cathedral", it has no official recognition from the Catholic Church in the Diocese of Alcalá de Henares.

With the exception of some help from others, the near entirety of the "cathedral" has been constructed purely by Gallego, who had no qualifications in any form; his studies had been interrupted during the Spanish Civil War.

[4] The project has received various external interest, the Museum of Modern art in New York presented photos of the architectural in a temporary exhibition in 2003-2005.

The building was donated to the Catholic organisation Mensajeros de la Paz (Messengers of Peace) just before his death to allow the construction to be completed.