Yesterday I had a look inside. I wanted more especially to see their concert program (most churches offer frequently good concerts, mostly free of charge).
I was in particular struck by the sculpture of St. Mary above the altar. It reminded me, especially colour wise, of some Wedgwood biscuit. I could not find any more detailed information about who created it.
The church was first built as a small chapel in 1826. It was extended to its present shape in 1851. Built more or less in the shape of a Greek temple, it’s one of the few Paris churches without a real tower. There is a small bell on the top, still indicating the hours of the day.