Citadelle de Montreuil-sur-Mer
Royal citadel in Montreuil-sur-Mer, France.
Each edition grades its towns against each other only.

Sorrus and its surroundings hold 3 galleries, 2 châteaux and 2 abbeys. What there is to see lies just outside: 10 places within 5 km of its centre. The best-known trip out is to Chartreuse Notre-Dame-des-Prés de Neuville-sous-Montreuil, 5.2 km away.
Along with Citadelle de Montreuil-sur-Mer, see 2 abbeys, 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.
Just outside town, most of the 10 sit to the east.
The first 20 on the list, numbered as below. The shape is the commune of Sorrus; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
The two biggest groups: châteaux or heritage sites (5) and museums or galleries (4).
Dark: in Sorrus. Light: in the communes within 5 km of its centre.
Each of the 10 is within 5 km of its centre.
Nothing is mapped in Sorrus itself; these are within 5 km of its centre.
Allow a day for Chartreuse Notre-Dame-des-Prés de Neuville-sous-Montreuil, 5.2 km away, the pick of 12.
Theme parkParc Bagatelle8.9 km west, in BerckAbbeyAbbeyAbbaye royale de Saint-Riquier40 km southeast, in Saint-RiquierGardenGardenJardins de Valloires14 km southeast, in Argoules
AquariumNausicaá - Centre national de la mer31 km north, in Boulogne-sur-MerChâteauChâteauChâteau de Boulogne-sur-Mer31 km north, in Boulogne-sur-MerChâteauChâteauFort Mahon39 km north, in AmbleteuseTheme parkTheme parkDennlys Parc33 km east, in DennebrœucqMuseumMuseumChemin de fer de la baie de Somme32 km south, in Saint-Valery-sur-SommeChâteauChâteauChâteau du Broutel22 km south, in RueFortFortFort de l'Heurt30 km north, in Le Portel
MuseumFort de la Crèche33 km north, in WimereuxPlaces within 40 km of Sorrus with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Sorrus itself, but within 5 km there are Citadelle de Montreuil-sur-Mer, Musée d'art et d'histoire Roger-Rodière, Enceinte de Montreuil-sur-Mer and Abbaye Saint-Saulve.
4 museums and galleries in town or within 5 km, including Musée d'art et d'histoire Roger-Rodière, Catherine Menuge, Dominique Gall art animalier and Dominique Gall, Atelier d'artiste.
The nearest with articles in both French and English Wikipedia: Chartreuse Notre-Dame-des-Prés de Neuville-sous-Montreuil (5.2 km), Parc Bagatelle (8.9 km), Abbaye royale de Saint-Riquier (40 km), Jardins de Valloires (14 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 Sorrus, 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.