Château Falfas
Historical chateau and Bordeaux wine estate in Bayon-sur-Gironde (Gironde, France).
Each edition grades its towns against each other only.

Châteaux or heritage sites make up 4 of the 6 places on the list. All of them lie outside Samonac. Château Margaux is worth a day, 8.1 km from the centre.
After Château Falfas, look out for 3 châteaux, an attraction 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.
Out at 4.4 km is Château de Thau, the farthest.
The first 20 on the list, numbered as below. The shape is the commune of Samonac; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
The biggest group is châteaux or heritage sites, with 4 of the 6.
Dark: in Samonac. Light: in the communes within 5 km of its centre.
6 places, all within 5 km of its centre, make the list.
Nothing is mapped in Samonac itself; these are within 5 km of its centre.
Château Margaux, at 8.1 km, heads the 12 day trips.
ChâteauChâteau Margaux8.1 km southwest, in Margaux-Cantenac
AttractionCathédrale Saint-André de Bordeaux26 km south, in Bordeaux
ChâteauChâteau Lafite Rothschild23 km northwest, in PauillacMuseumMuseumGrotte de Pair-non-Pair6.8 km southeast, in Prignac-et-Marcamps
ChâteauChâteau Mouton Rothschild22 km northwest, in Pauillac
ChâteauCitadelle de Blaye9.6 km northwest, in Blaye
ChâteauChâteau Rauzan-Ségla9 km southwest, in Margaux-Cantenac
ChâteauFort Paté9.6 km northwest, in Blaye
MuseumMusée des Beaux-Arts de Bordeaux26 km south, in BordeauxAttractionAttractionPont de pierre26 km south, in Bordeaux
ChâteauChâteau Palmer8.5 km southwest, in Margaux-Cantenac
ChâteauChâteau Lascombes9.3 km west, in Margaux-CantenacPlaces within 40 km of Samonac with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Samonac itself, but within 5 km there are Château Falfas, Château Fougas, Château de Thau and Moulin de Lansac.
One, in town or within 5 km: Musée de la voiture à cheval - Au temps des calèches.
The nearest with articles in both French and English Wikipedia: Château Margaux (8.1 km), Cathédrale Saint-André de Bordeaux (26 km), Château Lafite Rothschild (23 km), Grotte de Pair-non-Pair (6.8 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 Samonac, 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.