Cathédrale Saint-Jean de Belley
Cathedral located in Ain, in France.
Each edition grades its towns against each other only.

Châteaux or heritage sites make up 7 of the 11 places on the list. Marignieu itself has none of them. Abbaye royale d’Hautecombe is worth a day, 11 km from the centre.
Behind Cathédrale Saint-Jean de Belley on the list are 3 châteaux, a museum and a fort.
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.
Cathédrale Saint-Jean de Belley marks the outer edge, 5 km away.
The first 20 on the list, numbered as below. The shape is the commune of Marignieu; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
7 are châteaux or heritage sites; museums or galleries come next with 3.
Dark: in Marignieu. Light: in the communes within 5 km of its centre.
11 places, all within 5 km of its centre, make the list.
Nothing is mapped in Marignieu itself; these are within 5 km of its centre.
The history of Marignieu → · Parks and trails in Marignieu →
Abbaye royale d’Hautecombe, at 11 km, heads the 12 day trips.
Theme parkWalibi Rhône-Alpes23 km southwest, in Les Avenières Veyrins-Thuellin
MuseumMusée des Beaux-Arts de Chambéry30 km southeast, in ChambéryAttractionAttractionAqueduc romain de Vieu11 km north, in Valromey-sur-SéranPlaces within 40 km of Marignieu with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Marignieu itself, but within 5 km there are Cathédrale Saint-Jean de Belley, Musée des traditions vigneronnes, Donjon du Temple and Château de Rochefort-sur-Séran.
3 museums and galleries in town or within 5 km, including Musée des traditions vigneronnes, Maison du Marais et Réserve Naturelle and Musée des outils des métiers de la pierre.
The nearest with articles in both French and English Wikipedia: Abbaye royale d’Hautecombe (11 km), Cascade de Glandieu (17 km), Arc de Campanus (19 km), Château de Menthon-Saint-Bernard (38 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 Marignieu, 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.