Abbaye Sainte-Croix de Guingamp
Abbey located in Côtes-d'Armor, in France.
Each edition grades its towns against each other only.

With nothing in Coadout, the list has 4 places within 5 km of its centre. Look for 3 châteaux and an abbey. Beyond the town, the best known is Cathédrale Saint-Étienne de Saint-Brieuc, 31 km off.
Along with Abbaye Sainte-Croix de Guingamp, see 3 châteaux.
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.
Out at 4.6 km is Manoir du Lézard, the farthest.
The first 20 on the list, numbered as below. The shape is the commune of Coadout; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
They are all châteaux or heritage sites: 4 in all.
Dark: in Coadout. Light: in the communes within 5 km of its centre.
Nothing is inside Coadout itself; these 4 are within 5 km of its centre.
Nothing is mapped in Coadout itself; these are within 5 km of its centre.
Allow a day for Cathédrale Saint-Étienne de Saint-Brieuc, 31 km away, the pick of 9.
AttractionAbbaye de Beauport30 km northeast, in PaimpolCathedralCathedralCathédrale Saint-Tugdual de Tréguier30 km north, in TréguierAttractionAttractionChâteau de Tonquédec24 km northwest, in Tonquédec
ChâteauChâteau de Quintin24 km southeast, in QuintinChâteauChâteauChâteau de la Roche-Jagu24 km north, in PloëzalChâteauChâteauChâteau de Rosanbo30 km northwest, in LanvellecZooZooZooparc de Trégomeur24 km east, in TrégomeurAttractionAttractionMoulin de Craca31 km northeast, in PlouézecPlaces within 40 km of Coadout with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Coadout itself, but within 5 km there are Abbaye Sainte-Croix de Guingamp, Château de Kéranno, Manoir du Lézard and Manoir de Kérurien.
No museum or gallery is mapped in Coadout or within 5 km.
The nearest with articles in both French and English Wikipedia: Cathédrale Saint-Étienne de Saint-Brieuc (31 km), Abbaye de Beauport (30 km), Cathédrale Saint-Tugdual de Tréguier (30 km), Château de Tonquédec (24 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 Coadout, 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.