While visiting the Observatory, discover the meridian telescope which allowed the astronomers to tell the time to the city’s watchmakers. Reservation required. Not recommended for children under 10 years old.
RDV 3pm in front of the Observatory, avenue de l’Observatoire.
Prices: 8€ -6€ for students, under 18s, members of the OT (on presentation of a card), disabled persons. Free for under 12s and jobseekers.