The Church of Saint-Germain-des-Prés is a Roman Catholic parish church located in the Saint-Germain-des-Prés quarter of Paris. It was originally the church of a Benedictine abbey founded in the 6th century, by Childebert I, the son of Clovis, King of the Franks. It was destroyed by the Vikings, rebuilt, and renamed in the 8th century for Saint Germain, an early Bishop of the city. It is considered the oldest existing church in Paris.

We accidentally walked by this church and I am glad we did. As many others were, the church doors were unlocked so we could enter. It was only later I read that it was considered the oldest existing church in Paris. Our trip started with seeing the interiors of several churches and fittingly it ended with us getting lucky and doing the same.