Most of the cathedral is gothic (12-15th centuries), except the tower. Construction started in 1135, making Saint-Etienne the oldest gothic cathedral.…
South facade. The transept was built around 1500, much after the main nave and the apse.
South facade.
Apse of the cathedral.
North facade.
Double columns and massive pillar.
Massive pillar to support the nave.
Side aisle.
North rose.
North rose. The two roses of the transept were made in the early 16th century.
South rose.
The martyrdom of Savinien, 1st bishop of Sens, around 240 BC.