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Tell me more, I’ll get better.
Sign up and I'll remember your taste, your people & your saves.
© 2026 Go Playfully Inc
Science Exhibition🌿"Like a green oasis inside the City"
🔭"The view of Paris is spectacular"
✍️Astronomers' graffiti on the spiral staircase
Step into the world's oldest working observatory, where 17th-century astronomers mapped the heavens under a rotating copper dome. Peer through historic refractors, climb spiral staircases carved with scientists' graffiti, and stand on the Paris Meridian.
17th century architecture
Historic scientific site
Guided dome tours
Astronomy heritage
Science Exhibition🌿"Like a green oasis inside the City"
🔭"The view of Paris is spectacular"
✍️Astronomers' graffiti on the spiral staircase
Step into the world's oldest working observatory, where 17th-century astronomers mapped the heavens under a rotating copper dome. Peer through historic refractors, climb spiral staircases carved with scientists' graffiti, and stand on the Paris Meridian.
17th century architecture
Historic scientific site
Guided dome tours
Astronomy heritage