Abbaye Notre-Dame de la Joie
Monastery located in Oise, in France.
Each edition grades its towns against each other only.

This is a list led by châteaux or heritage sites, 5 of its 7. None of them is inside Trosly-Breuil itself. Go 6.1 km out for Château de Pierrefonds.
Along with Abbaye Notre-Dame de la Joie, see 3 châteaux, an abbey 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.
The list reaches out to Prieuré de Saint-Pierre-en-Chastres, 3.5 km away.
The first 20 on the list, numbered as below. The shape is the commune of Trosly-Breuil; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
Most common are châteaux or heritage sites: 5 of 7.
Dark: in Trosly-Breuil. Light: in the communes within 5 km of its centre.
Each of the 7 is within 5 km of its centre.
Monastery located in Oise, in France.
Priory located in Oise, in France.
Nothing is mapped in Trosly-Breuil itself; these are within 5 km of its centre.
The history of Trosly-Breuil → · Parks and trails in Trosly-Breuil →
Most famous of the 12 is Château de Pierrefonds, 6.1 km from the centre.
ChâteauChâteau de Compiègne11 km west, in CompiègneAttractionAttractionCathédrale Notre-Dame de Noyon20 km north, in NoyonChâteauChâteauChâteau de Coucy28 km northeast, in Coucy-le-Château-Auffrique
MuseumCamp de Royallieu12 km west, in CompiègneAttractionAttractionCathédrale Saint-Gervais-et-Saint-Protais de Soissons25 km east, in SoissonsAttractionAttractionClairière de l'Armistice6 km northwest, in Compiègne
CathedralCathédrale Notre-Dame de Senlis36 km southwest, in Senlis
MuseumMusée national de la voiture et du tourisme11 km west, in CompiègneAbbeyAbbeyAbbaye Saint-Jean-des-Vignes25 km east, in Soissons
AbbeyAbbaye royale de Saint-Médard de Soissons27 km east, in SoissonsMonastery or conventMonastery or conventAbbaye royale de Notre-Dame et Toussaints de Chaalis35 km southwest, in Fontaine-ChaalisPlaces within 40 km of Trosly-Breuil with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Trosly-Breuil itself, but within 5 km there are Abbaye Notre-Dame de la Joie, Prieuré de Saint-Pierre-en-Chastres, Château de Cuise and Château de Berneuil.
One, in town or within 5 km: Espace découverte Musée Territoire.
The nearest with articles in both French and English Wikipedia: Château de Pierrefonds (6.1 km), Château de Compiègne (11 km), Cathédrale Notre-Dame de Noyon (20 km), Château de Coucy (28 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 Trosly-Breuil, 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.