Notre-Dame Basilica, viewed from Place d’Armes, unchanged since 1843, with the Sulpician Seminary next to it, renovated and expanded in 1701.
Thankfully they tore down that awful looking parking garage which would have obstructed this view, effectively unchanged since 1927. On the left is the former Canadian Pacific telegraph offices, which I believe still has the remains of a pneumatic tube mail system within.
Ok, so there are a few more modern buildings in this pic, but unless they build a Waldorf-Astoria Hotel in the parking lot, this perspective hasn’t changed much in the last fifty years, although admittedly, it wouldn’t really be possible sans the Hall Bldg.