This is a unique Gothic architecture. The solemn and magnificent 201; glise Saint-Eustache St. Estash Church was built in the sixteenth to seventeenth centuries. Many French celebrities are baptized here after birth, receive the Eucharist and hold weddings and funerals. There is a huge organ built on the inner wall of the church, playing touching religious music during Mass. There are the true works of Flemish painter Rubens.