Allée couverte de Bel Evan
Gallery grave in Plouër-sur-Rance, France.
Each edition grades its towns against each other only.

All 7 places on the list are châteaux or heritage sites. None of them is inside Tréméreuc itself. Cathédrale Saint-Vincent de Saint-Malo lies 10 km out, the pick for a day trip.
Alongside Allée couverte de Bel Evan you find 5 châteaux.
Archaeological siteAllée couverte de Bel Evan4.3 km southeast, in Plouër-sur-RanceChâteauChâteauChâteau de la Crochais1.3 km west, in Beaussais-sur-MerChâteauChâteauManoir du Houx3.9 km northeast, in Le Minihic-sur-RanceChâteauChâteauChâteau de Beauchêne4.4 km east, in Langrolay-sur-RanceChâteauChâteauChâteau du Bois de la Motte4.9 km south, in Pleslin-TrigavouChâteauChâteauChâteau de la Ravillais4.9 km west, in Beaussais-sur-MerBest 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 ends at Château du Bois de la Motte, 4.9 km out.
The first 20 on the list, numbered as below. The shape is the commune of Tréméreuc; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
Every one of them is among châteaux or heritage sites.
Dark: in Tréméreuc. Light: in the communes within 5 km of its centre.
Here are the 7 places within 5 km of its centre.
Nothing is mapped in Tréméreuc itself; these are within 5 km of its centre.
The history of Tréméreuc → · Parks and trails in Tréméreuc →
Cathédrale Saint-Vincent de Saint-Malo (10 km) leads the 12 big names within reach.
AquariumGrand aquarium de Saint-Malo8.4 km northeast, in Saint-Malo
FortFort National11 km north, in Saint-MaloChâteauChâteauChâteau de Saint-Malo11 km north, in Saint-MaloAttractionAttractionFort la Latte20 km northwest, in PlévenonFortFortFort du Petit Bé11 km north, in Saint-MaloCathedralCathedralCathédrale Saint-Samson de Dol-de-Bretagne23 km east, in Dol-de-Bretagne
AttractionÉtoile du Roy11 km north, in Saint-MaloAttractionAttractionMenhir de Champ-Dolent24 km east, in Dol-de-Bretagne
ChâteauChâteau de Combourg28 km southeast, in CombourgPlaces within 40 km of Tréméreuc with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Tréméreuc itself, but within 5 km there are Allée couverte de Bel Evan, Château de la Crochais, Manoir du Houx and Château de Beauchêne.
No museum or gallery is mapped in Tréméreuc or within 5 km.
The nearest with articles in both French and English Wikipedia: Cathédrale Saint-Vincent de Saint-Malo (10 km), Château de Dinan (12 km), Tour Solidor (8.7 km), Grand aquarium de Saint-Malo (8.4 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 Tréméreuc, 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.