An abandoned Byzantine style church in NYC.
In the episode "God Complex" May 23, 2023, characters spend some time in a setting which could be described as a real God complex, an abandoned Church building.
On the outside it looked like a rather plain red brick building. But the inside has a splendid neo Byzantine style church interior with a dome on pendentives.
Since the series is filmed in and around New York City, the old abandoned church scenes should have been filmed in a real old church in or near NYC, since the main church interior seems much too large to have been built as a set.
So can anyone identify the actual old church used in those scenes?