This is Les Tuilleries, so called for the glass'tiles' that form the roof. Yves Saint Laurent had that day his show there; lots of pretty people.
The station of the Quai D'Orsay is now a good museum. It is amazing how well kept the grandeur of yesteryears is in this town... at least in the center. And don't look down too much, look up for pretty roofs and cupolas.
The Notre Dame Cathédral, with its buttresses seen from the back, is situated on a small island in the Seine.