Free museums in Paris and free monuments in Île-de-France: the top cultural deals

The article is a guide listing museums and monuments in Paris and the Île-de-France region that offer free admission, either permanently or on specific occasions like the first Sunday of each month. It highlights venues such as the Paris Museum of Modern Art (MAM), the Petit Palais, the Musée Bourdelle, and Notre-Dame cathedral, detailing their collections and practical visiting information.