If you're after somewhere peaceful to spend some time, organize a visit to Église de la Madeleine. This house of prayer offers a wonderful respite from the busy routine of life.
This 8th Arrondissement house of prayer is an ideal place to kick off your day of sightseeing. There's plenty to do and see in the vicinity, like Eiffel Tower, Louvre Museum, and Arc de Triomphe. Wander around at your leisure at Église de la Madeleine before making tracks to these other fine attractions.