Abbaye de Belval au Bois-des-Dames
Abbey located in Ardennes, in France.
Each edition grades its towns against each other only.

A day out from Fossé leads to Château de Landreville, 7.4 km away. All of it lies outside: 2 places within 5 km of its centre, none in Fossé. Look for a monastery and a château.
Beyond Abbaye de Belval au Bois-des-Dames, there is a château.
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 Château de Buzancy, 4.2 km out.
The first 20 on the list, numbered as below. The shape is the commune of Fossé; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
Every one of them is among châteaux or heritage sites.
Dark: in Fossé. Light: in the communes within 5 km of its centre.
2 places, all within 5 km of its centre, make the list.
Abbey located in Ardennes, in France.
Nothing is mapped in Fossé itself; these are within 5 km of its centre.
Château de Landreville, 7.4 km away, is the best known of the 12.
ChâteauChâteau de Sedan29 km north, in SedanMuseumMuseumOuvrage de La Ferté23 km northeast, in VillyAttractionAttractionSNCF BB 1200032 km northwest, in Nouvion-sur-MeuseAttractionAttractionMonument américain de Montfaucon22 km southeast, in Montfaucon-d'ArgonneGardenGardenArboretum du Petit-Bois22 km southeast, in Montfaucon-d'ArgonneGardenGardenJardin botanique de Sedan28 km north, in SedanGardenGardenArboretum de Vendresse24 km northwest, in VendresseFortFortOuvrage du Chesnois28 km northeast, in Thonne-le-ThilFortFortOuvrage de Thonnelle30 km northeast, in MontmédyFortFortOuvrage de Velosnes33 km east, in VelosnesFortFortFort des Ayvelles37 km northwest, in Villers-SemeusePlaces within 40 km of Fossé with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Fossé itself, but within 5 km there are Abbaye de Belval au Bois-des-Dames and Château de Buzancy.
No museum or gallery is mapped in Fossé or within 5 km.
The nearest with articles in both French and English Wikipedia: Château de Landreville (7.4 km), Château de Sedan (29 km), Ouvrage de La Ferté (23 km), SNCF BB 12000 (32 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 Fossé, 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.