Ouvrage de La Ferté
Maginot Line at Villy and La Ferté-sur-Chiers (Ardennes, France).
Each edition grades its towns against each other only.

From Lamouilly, the big name within reach is Château de Sedan, 27 km away. Nothing on our list is in Lamouilly; the 2 places to visit are within 5 km of its centre.
Ouvrage de La Ferté aside, the next best known is a museum.
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.
The map ends at Ouvrage de La Ferté, 4.3 km out.
The first 20 on the list, numbered as below. The shape is the commune of Lamouilly; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
Every one of them is among museums or galleries.
Dark: in Lamouilly. Light: in the communes within 5 km of its centre.
2 places make the list, every one within 5 km of its centre.
Maginot Line at Villy and La Ferté-sur-Chiers (Ardennes, France).
Nothing is mapped in Lamouilly itself; these are within 5 km of its centre.
The history of Lamouilly → · Parks and trails in Lamouilly →
Worth the drive, Château de Sedan (27 km) is first of the 12.
ChâteauChâteau de Sedan27 km northwest, in SedanFortFortOuvrage du Chesnois7.9 km northeast, in Thonne-le-ThilFortFortOuvrage de Thonnelle11 km east, in MontmédyChâteauChâteauChâteau de Landreville25 km southwest, in BayonvilleAttractionAttractionSNCF BB 1200036 km northwest, in Nouvion-sur-MeuseFortFortOuvrage de Velosnes17 km east, in VelosnesGardenGardenJardin botanique de Sedan27 km northwest, in SedanAttractionAttractionMonument américain de Montfaucon31 km south, in Montfaucon-d'ArgonneMuseumMuseumOuvrage de Fermont33 km east, in BeuveilleChâteauChâteauChâteau de Cons-la-Grandville34 km east, in Cons-la-GrandvilleFortFortOuvrage de Latiremont38 km east, in BaslieuxGardenGardenArboretum du Petit-Bois31 km south, in Montfaucon-d'ArgonnePlaces within 40 km of Lamouilly with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Lamouilly itself, but within 5 km there are Ouvrage de La Ferté and Fort de Villy - La Ferté.
2 museums and galleries in town or within 5 km, including Ouvrage de La Ferté and Fort de Villy - La Ferté.
The nearest with articles in both French and English Wikipedia: Château de Sedan (27 km), Ouvrage du Chesnois (7.9 km), Ouvrage de Thonnelle (11 km), Château de Landreville (25 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 Lamouilly, 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.