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

Of the 7 places to visit in and around Pannes, 4 are museums or galleries. None of them is inside Pannes itself. For a longer trip, Château de Sully-sur-Loire lies 36 km away.
Once you have seen Musée historique de l'Amitié franco-chinoise, try 2 museums, a church and a château.
MuseumMusée historique de l'Amitié franco-chinoise3.8 km east, in Montargis
MuseumMusée Girodet4 km east, in MontargisChurchChurchÉglise de la Madeleine de Montargis3.6 km east, in MontargisChâteauChâteauChâteau de Montargis3.3 km east, in MontargisMuseumMuseumLe P'tit Girodet3.7 km southeast, in MontargisAttractionAttractionLac des Closiers4.2 km southeast, 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.
The map puts most of the 7 to the east.
The first 20 on the list, numbered as below. The shape is the commune of Pannes; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
4 are museums or galleries; châteaux or heritage sites come next with 2.
Dark: in Pannes. Light: in the communes within 5 km of its centre.
7 places make the list, every one within 5 km of its centre.
Museum in Montargis, France.
Catholic religious building in Montargis, France.
Nothing is mapped in Pannes itself; these are within 5 km of its centre.
First of the 12 big names within reach is Château de Sully-sur-Loire, 36 km away.
AttractionChâteau de Sully-sur-Loire36 km southwest, in Sully-sur-LoireAbbeyAbbeyAbbaye de Saint-Benoît-sur-Loire36 km southwest, in Saint-Benoît-sur-LoireAbbeyAbbeyAbbaye Royale de Ferrières12 km northeast, in Ferrières-en-Gâtinais
AttractionChâteau de Gien36 km south, in Gien
MuseumChâteau de Nemours28 km north, in NemoursChâteauChâteauChâteau de Bellegarde18 km west, in Bellegarde
GardenArboretum national des Barres20 km south, in Nogent-sur-Vernisson
ChâteauChâteau de Châteauneuf-sur-Loire39 km southwest, in Châteauneuf-sur-LoireGardenGardenArboretum des Grandes Bruyères20 km south, in Nogent-sur-Vernisson
MuseumMusée départemental de Préhistoire d'Île-de-France28 km north, in NemoursChâteauChâteauChâteau du Hallier28 km west, in NibelleChâteauChâteauChâteau de Vallery37 km northeast, in ValleryPlaces within 40 km of Pannes with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Pannes itself, but within 5 km there are Musée historique de l'Amitié franco-chinoise, Musée Girodet, Église de la Madeleine de Montargis and Château de Montargis.
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 (36 km), Abbaye de Saint-Benoît-sur-Loire (36 km), Abbaye Royale de Ferrières (12 km), Château de Gien (36 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 Pannes, 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.