Château Deganne
Château in Arcachon, France, used as casino and congress centre.
Each edition grades its towns against each other only.

On foot in Arcachon, 6 places to visit are within 1 km of the centre. Every one of its 8 places to visit is in Arcachon. There are 6 attractions and 2 galleries to choose from. Out of town, Tramway du Cap-Ferret is 5.7 km away.
Château Deganne aside, the next best known are 3 attractions and 2 galleries.
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.
Furthest out is Canon du Moulleau, at 3.3 km.
The first 20 on the list, numbered as below. The shape is the commune of Arcachon; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
6 other sights and 2 museums or galleries top the count.
Dark: in Arcachon. Light: in the communes within 5 km of its centre.
The list is 8 places, all in town.
The 8 places in Arcachon first, then those within 5 km of its centre.
Allow a day for Tramway du Cap-Ferret, 5.7 km away, the pick of 2.
MuseumTramway du Cap-Ferret5.7 km west, in Lège-Cap-FerretChâteauChâteauChâteau de Montbron29 km south, in BiscarrossePlaces within 40 km of Arcachon with an article in both French and English Wikipedia, nearest first.
The first on our list in Arcachon are Château Deganne, Canon du Moulleau, Casino and Droit de Regard. We list 8 places in town.
2 museums and galleries in town or within 5 km, including Droit de Regard and Galerie Saint Martin.
The nearest with articles in both French and English Wikipedia: Tramway du Cap-Ferret (5.7 km), Château de Montbron (29 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 Arcachon, 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.