Named after Severin, a devout hermit who lived on the banks of the Seine during the fifth century. This 13th century Gothic church is moody, dark, with fine gargoyles, and dramatic flying buttresses. Some say one of Paris’s best kept secrets.

Take advantage of the organ concerts here. It’s located in the heart of the Latin Quarter, right around the corner from Boulevard Saint Germain. Directions in your No Worries Paris guidebook.