This event is in the past.It took place on July 11, 2026 at Église Saint-Sulpice.
Visite guidée du gnomon astronomique de l’église Saint-Sulpice
July 11 at 1:30pm
6th Arr., Paris
Step inside Saint-Sulpice for a free 90-minute guided tour of its remarkable astronomical gnomon: a brass meridian line and marble obelisk that once tracked the sun through the seasons. It's a rare chance to see 17th-century science built into the floor of one of Paris's most quietly majestic churches.
Visite guidée du gnomon astronomique de l’église Saint-Sulpice
July 11 at 1:30pm
6th Arr., Paris
Step inside Saint-Sulpice for a free 90-minute guided tour of its remarkable astronomical gnomon: a brass meridian line and marble obelisk that once tracked the sun through the seasons. It's a rare chance to see 17th-century science built into the floor of one of Paris's most quietly majestic churches.