Musée des tramways à vapeur et des chemins de fer secondaires français
Railway museum in Butry-sur-Oise, Val-d'Oise.
Each edition grades its towns against each other only.

A day out from Rotangy leads to Cathédrale Saint-Pierre de Beauvais, 17 km away. Our list finds nothing in Rotangy, but 2 places within 5 km of its centre. Look for a museum and a château.
The list goes on from Musée des tramways à vapeur et des chemins de fer secondaires français to a château.
MuseumMusée des tramways à vapeur et des chemins de fer secondaires français2.8 km north, in Crèvecœur-le-GrandChâteauChâteauChâteau de Crèvecœur-le-Grand2.8 km north, in Crèvecœur-le-GrandBest 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 Crèvecœur-le-Grand, 2.8 km out.
The first 20 on the list, numbered as below. The shape is the commune of Rotangy; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
The list holds a museum and a château.
Dark: in Rotangy. Light: in the communes within 5 km of its centre.
Its 2 places all lie within 5 km of its centre.
Railway museum in Butry-sur-Oise, Val-d'Oise.
Nothing is mapped in Rotangy itself; these are within 5 km of its centre.
Cathédrale Saint-Pierre de Beauvais, at 17 km, heads the 12 day trips.
AttractionCathédrale Saint-Pierre de Beauvais17 km south, in Beauvais
AttractionCathédrale Notre-Dame d'Amiens38 km northeast, in Amiens
MuseumMusée de Picardie37 km northeast, in AmiensAttractionAttractionAbbaye Saint-Germer-de-Fly27 km southwest, in Saint-Germer-de-FlyAttractionAttractionTour Perret38 km northeast, in Amiens
MuseumMusée départemental de l'Oise17 km south, in BeauvaisAbbeyAbbeyAbbaye de Marcheroux31 km south, in Beaumont-les-NonainsAbbeyAbbeyAbbaye de Saint-Martin-aux-Bois36 km east, in Saint-Martin-aux-Bois
MuseumMusée de l'Hôtel de Berny38 km northeast, in AmiensAbbeyAbbeyAbbaye de Saint-Acheul38 km northeast, in AmiensAbbeyAbbeyAbbaye Saint-Vaast de Moreuil36 km northeast, in MoreuilChâteauChâteauChâteau du Manais26 km southwest, in Ferrières-en-BrayPlaces within 40 km of Rotangy with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Rotangy itself, but within 5 km there are Musée des tramways à vapeur et des chemins de fer secondaires français and Château de Crèvecœur-le-Grand.
One, in town or within 5 km: Musée des tramways à vapeur et des chemins de fer secondaires français.
The nearest with articles in both French and English Wikipedia: Cathédrale Saint-Pierre de Beauvais (17 km), Cathédrale Notre-Dame d'Amiens (38 km), Musée de Picardie (37 km), Abbaye Saint-Germer-de-Fly (27 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 Rotangy, 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.