The Eglise Saint-Gervais-Saint-Protais is an example of a successful mix of different architectural styles. Classical, Gothic, Renaissance... the building and its impressive façade are a must-see in the 4th arrondissement.
The Eglise Saint-Paul-Saint-Louis, in the Marais district, is a place that takes us back into the history of Paris. With its impressive dome and Delacroix painting on the walls, it's a must-see in the 4th arrondissement.