Even in Iran, the place for zoroastrianism, the towers of silence I've seen are completely unused for decades. I've visited ie one in Yazd just outside the city some 8 years ago when international relationships were at highest point (if I knew I would go there ten times, absolutely amazing country and people, completely unspoiled by mass tourism).

Zoroastrianism is fascinating and probably first major monotheistic religion and later ie judaism took a heavy inspiration from it. So much for everybody yelling how holiest their truth is and how chosen they specifically are, a lot of folks and mankind overall would benefit massively if they traveled more and more remote. I know I did.

They have concrete building not far where they put their dead instead, forgot the exact procedure unfortunately but clearly its still ok within their religion. If in holiest city of whole religion which houses 'eternal flame' they can manage this, maybe other places should take a note too?