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I don't have time to necessarily contribute right now, so I'm leaving some notes here for the moment for future use (by me or anyone else interested). The main historic examples of this motif that come to my mind without thinking hard:
Façades with twin bell towers over Christian churches, which date back to Romanesque or Carolingian architecture, but have earlier antecedents as well apparently (e.g. see footnote 10 here, footnote 28 [1]).
The use of twin minarets over entrance portals. I think there's some brief material on that already in Minaret (see "Iran, Central Asia, and South Asia"), and there's some brief discussion about it in this source (p.255), this one (page number not available), this (p.532, bottom right), and probably elsewhere.
The number of minarets in an Ottoman mosque was also considered significant (e.g. [2], [3], and others I can't pull up right now), but they weren't limited to two and this is perhaps more a case of symmetry rather than twinning/pairing.
The only caveat is that I don't know/think that there's any deeper connection between these examples from different parts of the world. There may be some discussion of twin towers specifically as a general architectural motif somewhere in the literature, but I wouldn't know where off the top of my head. R Prazeres (talk) 17:25, 15 May 2023 (UTC)[reply]