This ancient church built in the 12th Century boasts a romanesque tower and other treasures within.  Parts of the church remain from the 6th century beginnings.  It is undergoing a much-needed restoration to bring it back to its former glory.
Did you know that the heart of Descartes is interred here? 
The rest of him is at the Pantheon. 

The fantastic acoustics enhance performances of Gregorian chants,
 and the medieval surroundings make a haunting backdrop.

bon dimanche

Église de Saint-Germain-des-Prés
3, place Saint-Germain-des-Prés
75006 Paris