One can read: extract from the book on the heritage of the communes of the Sarthe: "Having a cemetery as a tourist curiosity is not trivial! It is however the case of Mareil-en-champagne. Here, an interminable boxwood hedge serves as a setting for the cemetery, at the northern exit of the town. Monumental, the outer enclosure is even 3 meters thick and more than 4 meters high. Inside, a small corner of paradise..."
This boxwood cemetery has been listed in the supplementary inventory of historical monuments since January 5, 1944. (Garden of France). It is one of the first 3 classified cemeteries.