Musée historique de l'Amitié franco-chinoise
Museum in Montargis, France.
Each edition grades its towns against each other only.

Among the places to visit in and near Châlette-sur-Loing are 4 museums, 4 attractions and a church. What there is to see lies just outside: 10 places within 5 km of its centre. A day out reaches Château de Sully-sur-Loire, 38 km away.
Along with Musée historique de l'Amitié franco-chinoise, see 2 museums, a church and an attraction.
MuseumMusée historique de l'Amitié franco-chinoise2.5 km southeast, in Montargis
MuseumMusée Girodet2.6 km southeast, in MontargisChurchChurchÉglise de la Madeleine de Montargis2.3 km south, in MontargisAttractionAttractionMoulin Bardin4.7 km south, in AmillyChâteauChâteauChâteau de Montargis2.2 km south, in MontargisMuseumMuseumLe P'tit Girodet2.5 km south, in MontargisBest 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.
To the south is where most of the 10 lie.
The first 20 on the list, numbered as below. The shape is the commune of Châlette-sur-Loing; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
4 museums or galleries and 4 other sights top the count.
Dark: in Châlette-sur-Loing. Light: in the communes within 5 km of its centre.
10 places, all within 5 km of its centre, make the list.
Museum in Montargis, France.
Catholic religious building in Montargis, France.
Nothing is mapped in Châlette-sur-Loing itself; these are within 5 km of its centre.
The history of Châlette-sur-Loing → · Parks and trails in Châlette-sur-Loing →
Château de Sully-sur-Loire, at 38 km, heads the 12.
AttractionChâteau de Sully-sur-Loire38 km southwest, in Sully-sur-LoireAbbeyAbbeyAbbaye de Saint-Benoît-sur-Loire39 km southwest, in Saint-Benoît-sur-LoireAbbeyAbbeyAbbaye Royale de Ferrières9.5 km northeast, in Ferrières-en-Gâtinais
AttractionChâteau de Gien38 km south, in Gien
MuseumChâteau de Nemours28 km north, in NemoursChâteauChâteauChâteau de Bellegarde21 km west, in Bellegarde
GardenArboretum national des Barres20 km south, in Nogent-sur-VernissonGardenGardenArboretum des Grandes Bruyères20 km south, in Nogent-sur-Vernisson
MuseumMusée départemental de Préhistoire d'Île-de-France27 km north, in NemoursChâteauChâteauChâteau de Vallery35 km northeast, in Vallery
ChâteauChâteau de Moret40 km north, in Moret-Loing-et-OrvanneChâteauChâteauChâteau du Hallier30 km west, in NibellePlaces within 40 km of Châlette-sur-Loing with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Châlette-sur-Loing itself, but within 5 km there are Musée historique de l'Amitié franco-chinoise, Musée Girodet, Église de la Madeleine de Montargis and Moulin Bardin.
4 museums and galleries in town or within 5 km, including Musée historique de l'Amitié franco-chinoise, Musée Girodet, Le P'tit Girodet and Musée du cuir et des tanneurs.
The nearest with articles in both French and English Wikipedia: Château de Sully-sur-Loire (38 km), Abbaye de Saint-Benoît-sur-Loire (39 km), Abbaye Royale de Ferrières (9.5 km), Château de Gien (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 Châlette-sur-Loing, 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.