Église Notre-Dame de Carignan
Church located in Ardennes, in France.
Each edition grades its towns against each other only.

Nothing on our list is in Sachy; the 4 places to visit are within 5 km of its centre. On the list: 2 châteaux, a monastery and a fort, among others. At 14 km, Château de Sedan is worth the journey.
Église Notre-Dame de Carignan aside, the next best known are 2 châteaux and a fort.
Best known first: by how many Wikipedia and sister-site articles cover each place (Wikidata’s count). It isn’t a ranking of how good they are.
Out of town, most of the 4 are to the southeast.
The first 20 on the list, numbered as below. The shape is the commune of Sachy; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
They are all châteaux or heritage sites: 4 in all.
Dark: in Sachy. Light: in the communes within 5 km of its centre.
All of it lies within 5 km of its centre: 4 places.
Nothing is mapped in Sachy itself; these are within 5 km of its centre.
Day trips number 11; the best known is Château de Sedan, 14 km off.
ChâteauChâteau de Sedan14 km west, in SedanMuseumMuseumOuvrage de La Ferté12 km southeast, in VillyAttractionAttractionSNCF BB 1200025 km west, in Nouvion-sur-MeuseGardenGardenJardin botanique de Sedan14 km west, in SedanAttractionAttractionPlace Ducale32 km west, in Charleville-MézièresFortFortOuvrage du Chesnois18 km southeast, in Thonne-le-ThilChâteauChâteauChâteau de Landreville33 km south, in BayonvilleFortFortOuvrage de Thonnelle23 km southeast, in MontmédyGardenGardenArboretum de Vendresse24 km west, in VendresseFortFortFort des Ayvelles29 km west, in Villers-SemeuseFortFortOuvrage de Velosnes30 km southeast, in VelosnesPlaces within 40 km of Sachy with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Sachy itself, but within 5 km there are Église Notre-Dame de Carignan, Fortifications de Carignan, Château de Reméhan and Lombut.
No museum or gallery is mapped in Sachy or within 5 km.
The nearest with articles in both French and English Wikipedia: Château de Sedan (14 km), Ouvrage de La Ferté (12 km), SNCF BB 12000 (25 km), Jardin botanique de Sedan (14 km).
From OpenStreetMap and Wikidata: named museums, galleries, châteaux, abbeys, gardens, zoos, theme parks and other visitor attractions whose mapped point lies inside the commune of Sachy, then those in the communes within 5 km of its centre, and well-known places within 40 km. Houses, ruins and gardens need a sign they’re open to visitors; places marked private, closed or disused are left out. The historic-monument link is the Culture ministry’s Mérimée record. A place that isn’t mapped isn’t listed, so this isn’t everything there is to see.
Sources: OpenStreetMap (© OpenStreetMap contributors, ODbL), Wikidata (CC0: descriptions, websites, Wikipedia articles), the Culture ministry’s Mérimée database (Licence Ouverte 2.0), IGN commune boundaries. Distances are from the commune’s centre point.
Photos from Wikimedia Commons, each under its own licence (our copy, resized).
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.