building:name = Vitrail La Vague is certainly not correct , it's the name of an artwork in the building : https://commons.wikimedia.org/wiki/File:Art-Nouveau_glasraam_-_%22La_Vague%22_-_Saintenoy_(1544116423).jpg

https://ucclensia.be/wp-content/uploads/2020/10/Ucclensia-254.pdf (p 8) 

Architecture is eclectic not art_nouveau (even there is art nouveau in) : https://monument.heritage.brussels/fr/buildings/19082 (+ add heritage=4)

Magyar Ház is a community_centre (cultural ? religious ? ) : https://magyarhazbrusszel.blogspot.com/

