Saint-Nazaire and city walls

Saint Catherine Chapel in the Strasbourg Cathedral
See fr.wikipedia.org

Romanesque abbey of V?zelay

City walls

"It was restored in the 19th century by Eugène Viollet-le-Duc, opening up the choir with major restoration involving only the "Galerie des Sonneurs" above the façade, changing the style and aspect." (OUV)

Basilique Saint-Sernin (Toulouse)

Notre Dame de Paris and Sainte-Chapelle