It is another grey autumn day in Paris (I best get used to it), but not particularly cold, so still alright to wander around a little in the evening on a long walk. Somehow, my aimless stroll took me to the historic main building of Observatoire de Paris. The one the famously aligns with Fontaine de l’Observatoire and Jardin du Luxembourg.

So this quilted looking dome of the Perrault building is the Arago dome, named after François Arago, the director of the Observatory from 1834-1853. It houses an astronomical telescope, and may be visited as part of a 2-hour guided tour (reservation required) of the entire building. The tour also takes you floor by floor, to see the talking clocks room (ground floor), the grand gallery (first floor) and the Cassini Hall (second floor) where the Paris meridian is marked. I should try to book myself in for a tour.

Ps: hmmm, the French version says reservation is currently not available.