• The municipal scale: As in many villages in France, Montmançon has a public scale to weigh animals, hay and grain (wheat, etc.) intended for sale. The device allowed to weigh up to 15 tons. The measuring weight was inside a building, which today no longer exists. The use of the communal scale will gradually decrease until it disappears in the second half of the 20th century.
• The Church of the Nativity: It dates from the 19th century. Surprisingly, it has no vault but a straight ceiling.