Ha, I was in the Jardin des Plantes just one hour ago!
The second image is Opéra Garnier’s grand staircase: https://cdn2.civitatis.com/francia/paris/galeria/panoramica-gran-escalera-opera-garnier.jpg
And I’m pretty sure the guy with the black cape, under the stairs, is the Phantom of the Opera.
They seem to be having a global BD related exhibition : https://www.centrepompidou.fr/en/program/calendar/event/zozduYP?gad_source=1&cHash=2063aa53c2b89eb65797a4a813a1ba31 If I understand correctly, there are comic-related installations in several parts of the building, the main exhibition being this one : https://www.centrepompidou.fr/en/program/calendar/event/9htHbj4
I’ve only seen the Corto Maltese exhibition, which is actually inside the “BPI” a large public library (situated in the same building, and part of the same institution (the “Pompidou Center”), as the Museum for Modern Art), where many people (like me) go to study ; it contains a small exhibition space (where admission is free, unlike the museum). They’ve hosted a Posy Simmonds exhibition last winter.
I haven’t read a Corto Maltese book since I was much too young to get it, and the exhibition’s really made me want to give these comics a new try.