Chapelle latérale (lateral chapel ©)

The translation in the title is followed by this sign ©; this means that it has been "invented" by me.

A chapelle (chapel) that is built against the south or north wall of a church.
Most of the time lateral chapels are later additions to the building.
On the photo one of the lateral chapels of the Sainte-Madeleine in Charnay-lès-Mâcon.

Sainte-Madeleine - Charnay-lès-Mâcon