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

3 of the 5 places to visit in and around Margut are châteaux or heritage sites. All of them lie outside Margut. A longer outing takes you to Château de Sedan, 26 km off.
After Ouvrage de La Ferté come 2 châteaux, a fort and 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.
At the edge of the map sits Ouvrage du Chesnois, 4.8 km out.
The first 20 on the list, numbered as below. The shape is the commune of Margut; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
3 are châteaux or heritage sites; museums or galleries come next with 2.
Dark: in Margut. Light: in the communes within 5 km of its centre.
Look within 5 km of its centre for all 5 places listed.
Nothing is mapped in Margut itself; these are within 5 km of its centre.
The 12 days out are led by Château de Sedan, 26 km away.
ChâteauChâteau de Sedan26 km northwest, in SedanFortFortOuvrage de Thonnelle9.7 km southeast, in MontmédyAttractionAttractionSNCF BB 1200037 km west, in Nouvion-sur-MeuseFortFortOuvrage de Velosnes16 km southeast, in VelosnesChâteauChâteauChâteau de Landreville30 km southwest, in BayonvilleGardenGardenJardin botanique de Sedan26 km northwest, in SedanMuseumMuseumOuvrage de Fermont33 km southeast, in BeuveilleChâteauChâteauChâteau de Cons-la-Grandville33 km east, in Cons-la-GrandvilleAttractionAttractionMonument américain de Montfaucon36 km south, in Montfaucon-d'ArgonneFortFortOuvrage de Latiremont37 km southeast, in BaslieuxGardenGardenArboretum de Vendresse34 km west, in VendresseGardenGardenArboretum du Petit-Bois36 km south, in Montfaucon-d'ArgonnePlaces within 40 km of Margut with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Margut itself, but within 5 km there are Ouvrage de La Ferté, Ouvrage du Chesnois, Château de Tassigny and Château d'Auflance.
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 (26 km), Ouvrage de Thonnelle (9.7 km), SNCF BB 12000 (37 km), Ouvrage de Velosnes (16 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 Margut, 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.