Château de Montalba-le-Château
Castle in Montalba-le-Château, France.
Each edition grades its towns against each other only.

From Trévillach, the big name within reach is Château de Quéribus, 16 km away. There is no place to visit in Trévillach; there are 2 within 5 km of its centre.
Following Château de Montalba-le-Château is a château.
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 stretches to Le Château, 4.6 km away.
The first 20 on the list, numbered as below. The shape is the commune of Trévillach; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
Both are châteaux or heritage sites.
Dark: in Trévillach. Light: in the communes within 5 km of its centre.
These 2 are within 5 km of its centre, none in town.
Castle in Montalba-le-Château, France.
Nothing is mapped in Trévillach itself; these are within 5 km of its centre.
The history of Trévillach → · Parks and trails in Trévillach →
Château de Quéribus (16 km) leads the 12 big names within reach.
AttractionForteresse de Salses35 km northeast, in Salses-le-ChâteauAttractionAttractionChâteau de Termes33 km north, in TermesChâteauChâteauChâteau d'Arques30 km northwest, in ArquesPlaces within 40 km of Trévillach with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Trévillach itself, but within 5 km there are Château de Montalba-le-Château and Le Château.
No museum or gallery is mapped in Trévillach or within 5 km.
The nearest with articles in both French and English Wikipedia: Château de Quéribus (16 km), Château de Peyrepertuse (18 km), Abbaye Saint-Michel de Cuxa (16 km), Château de Puilaurens (21 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 Trévillach, 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.