During my recent month in France, I drove into Paris 3 times on the northbound A6. Near the point where one connects from the A6 to the Peripherique heading towards Porte de Versaille, I saw a building that looks like a church. The building is on the left as you are heading north/west and has a tower with what looks like four green angels or heralds at the top. It is very close to the highway and looks like it is built right on top of a wall that is sort of above the road. I think the building is wonderful and would love to visit it instead of just passing by on the highway. I have not been able to find out the name of the building despite doing a number of online searches. If you know the name, I would appreciate it if you could share it with me. Thanks.