Cathédrale Notre-Dame de Sées
Roman Catholic cathedral in Sées, France.
Each edition grades its towns against each other only.

Most of what there is to see is châteaux or heritage sites: 3 of 5. None of them is inside Aunou-sur-Orne itself. Out of town, Haras national du Pin is 16 km away.
The rest of the best known are 2 châteaux, an abbey and a museum.
AttractionCathédrale Notre-Dame de Sées4.7 km west, in SéesAbbeyAbbeyAbbaye Saint-Martin de Sées4.5 km west, in SéesChâteauChâteauPalais d'Argentré4.6 km west, in Sées
MuseumMusée départemental d'art religieux de Sées4.6 km west, in SéesChâteauChâteauMotte castrale de la Butte Saint-Pierre4.9 km west, in SéesBest 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.
Look to the west for most of the 5 just outside.
The first 20 on the list, numbered as below. The shape is the commune of Aunou-sur-Orne; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
3 of the 5 are châteaux or heritage sites, more than any other kind.
Dark: in Aunou-sur-Orne. Light: in the communes within 5 km of its centre.
5 places make the list, every one within 5 km of its centre.
Nothing is mapped in Aunou-sur-Orne itself; these are within 5 km of its centre.
The history of Aunou-sur-Orne → · Parks and trails in Aunou-sur-Orne →
Allow a day for Haras national du Pin, 16 km away, the pick of 10.
AttractionHôtel de ville d'Alençon23 km southwest, in Alençon
MuseumMusée des beaux-arts et de la dentelle23 km southwest, in AlençonAttractionAttractionAbbaye Notre-Dame d'Argentan24 km northwest, in ArgentanMuseumMuseumMémorial de Coudehard-Montormel26 km north, in Mont-OrmelMonastery or conventMonastery or conventTemple pour la paix27 km north, in Aubry-le-PanthouAttractionAttractionChar Tigre de Vimoutiers35 km north, in VimoutiersChâteauChâteauChâteau de la Motte29 km west, in Joué-du-PlainPlaces within 40 km of Aunou-sur-Orne with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Aunou-sur-Orne itself, but within 5 km there are Cathédrale Notre-Dame de Sées, Abbaye Saint-Martin de Sées, Palais d'Argentré and Musée départemental d'art religieux de Sées.
One, in town or within 5 km: Musée départemental d'art religieux de Sées.
The nearest with articles in both French and English Wikipedia: Haras national du Pin (16 km), Abbaye Royale de Saint-Évroult (26 km), Abbaye d'Almenêches (13 km), Hôtel de ville d'Alençon (23 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 Aunou-sur-Orne, 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.