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

Châteaux or heritage sites make up 7 of the 12 places on the list. All of them lie outside Écuires. Allow a day for Parc Bagatelle, 11 km off.
Next to Citadelle de Montreuil-sur-Mer, the best known are 2 abbeys, a monastery 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.
To the north is where most of the 12 lie.
The first 20 on the list, numbered as below. The shape is the commune of Écuires; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
Châteaux or heritage sites number 7, museums or galleries 4.
Dark: in Écuires. Light: in the communes within 5 km of its centre.
All 12 on the list lie within 5 km of its centre.
Royal citadel in Montreuil-sur-Mer, France.
Carthusian monastery located in Pas-de-Calais, France.
Nothing is mapped in Écuires itself; these are within 5 km of its centre.
The 10 days out are led by Parc Bagatelle, 11 km away.
Theme parkParc Bagatelle11 km west, in BerckAbbeyAbbeyAbbaye royale de Saint-Riquier38 km south, in Saint-RiquierGardenGardenJardins de Valloires12 km south, in ArgoulesTheme parkTheme parkDennlys Parc31 km northeast, in Dennebrœucq
AquariumNausicaá - Centre national de la mer33 km north, in Boulogne-sur-MerMuseumMuseumChemin de fer de la baie de Somme31 km south, in Saint-Valery-sur-SommeChâteauChâteauChâteau de Boulogne-sur-Mer32 km north, in Boulogne-sur-MerChâteauChâteauChâteau du Broutel21 km south, in RueFortFortFort de l'Heurt32 km northwest, in Le Portel
MuseumFort de la Crèche35 km north, in WimereuxPlaces within 40 km of Écuires with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Écuires itself, but within 5 km there are Citadelle de Montreuil-sur-Mer, Chartreuse Notre-Dame-des-Prés de Neuville-sous-Montreuil, Musée d'art et d'histoire Roger-Rodière and Enceinte de Montreuil-sur-Mer.
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: Parc Bagatelle (11 km), Abbaye royale de Saint-Riquier (38 km), Jardins de Valloires (12 km), Dennlys Parc (31 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 Écuires, 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.