Château de Boulogne-sur-Mer
Boulogne-sur-Mer, Castle & Museum in the French seaport..
Each edition grades its towns against each other only.

Our list finds nothing in Echinghen, but 14 places within 5 km of its centre. They include 8 attractions, 4 museums and 2 châteaux. The best-known trip out is to V3, 19 km away.
Then come 3 museums, a château and an attraction, behind Château de Boulogne-sur-Mer.
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.
The map puts most of the 14 to the northwest.
The first 20 on the list, numbered as below. The shape is the commune of Echinghen; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
Ahead are other sights (8); next, museums or galleries (4).
Dark: in Echinghen. Light: in the communes within 5 km of its centre.
You will find all 14 within 5 km of its centre.
Nothing is mapped in Echinghen itself; these are within 5 km of its centre.
The history of Echinghen → · Parks and trails in Echinghen →
The standout of the 12 is V3, 19 km from town.
AquariumNausicaá - Centre national de la mer5.2 km northwest, in Boulogne-sur-MerChâteauChâteauFort Mahon12 km north, in Ambleteuse
MuseumFort de la Crèche6.4 km northwest, in WimereuxFortFortFort de l'Heurt6.6 km west, in Le PortelMuseumMuseumBlockhaus d'Éperlecques40 km east, in ÉperlecquesMonastery or conventMonastery or conventChartreuse Notre-Dame-des-Prés de Neuville-sous-Montreuil27 km south, in Neuville-sous-MontreuilChâteauChâteauCitadelle de Montreuil-sur-Mer27 km south, in Montreuil-sur-Mer
Theme parkParc Bagatelle30 km south, in BerckPlaces within 40 km of Echinghen with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Echinghen itself, but within 5 km there are Château de Boulogne-sur-Mer, Château de Pont-de-Briques, Beffroi de Boulogne-sur-Mer and Château Musée d'Aumont.
4 museums and galleries in town or within 5 km, including Château Musée d'Aumont, École-musée, Maison de la Beurière and Casa San Martin.
The nearest with articles in both French and English Wikipedia: V3 (19 km), Cap Gris-Nez (19 km), Cap Blanc-Nez (25 km), Forteresse de Mimoyecques (18 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 Echinghen, 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.