Near Place de Tertre on Rue du Mont Cenis, you can visit the Church of Saint-Pierre-de-Montmartre, one of the few examples of Romanesque style in Paris. Its simple, gray stone façade is the result of a seventeenth-century refurbishment, while the interior retains its simple medieval structure. In this church that was consecrated in 1147, you can see the oldest masonry vaults in Paris, and enjoy yourself admiring some architectural fragments from Roman times. And don't forget to go around the church to take a look at the old bell tower, a simple, multiple-tiered tower of double windows.
