I understand that most ritual items have a status of kedusha such as Torah scrolls, tefillin, etc.
I'm curious if there is a status of kedusha attached to any parts of the shul's "affixed structure". For example, do stained glass windows or domes that may have verses from Tanac"h on them have any kedusha? If a shul becomes a church, must these be removed or can they remain as part of the church?
What about the furniture such as the Aron Kodesh, the shulchan, the bimah? Can these be used by a church afterwards?
Is there any kedusha to yahrtzeit plaques that may have Tanac"h verses on them?
If any of these items need to be removed, do they need burial, or how else should they be handled?