Conservatoire botanique national de Brest
France's National Botanical Conservatory in Brest.
Each edition grades its towns against each other only.

4 of the 7 places to visit in and around Guipavas are châteaux or heritage sites. None of them is inside Guipavas itself. Allow a day for Dassault Super-Étendard, 16 km off.
Along with Conservatoire botanique national de Brest, see 3 châteaux, an aquarium and a garden.
GardenConservatoire botanique national de Brest3.9 km southwest, in Brest
AquariumOcéanopolis4.5 km southwest, in Brest
ChâteauChâteau de Mesléan3.7 km west, in GouesnouChâteauChâteauManoir de Lossulien3 km south, in Le Relecq-KerhuonGardenGardenJardin de Kerampéré4.5 km southwest, in BrestChâteauChâteauManoir de Kererault4.9 km southeast, in Plougastel-DaoulasBest 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 farthest of them, Manoir de Kererault, is 4.9 km out.
The first 20 on the list, numbered as below. The shape is the commune of Guipavas; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
Most are châteaux or heritage sites, 4 in all, ahead of gardens (2).
Dark: in Guipavas. Light: in the communes within 5 km of its centre.
Look within 5 km of its centre for all 7.
Nothing is mapped in Guipavas itself; these are within 5 km of its centre.
The standout of the 12 is Dassault Super-Étendard, 16 km from town.
MuseumTour Tanguy8 km southwest, in BrestChâteauChâteauChâteau de Joyeuse Garde6.9 km east, in La Forest-LanderneauAttractionAttractionAbbaye Saint-Guénolé de Landévennec18 km southeast, in LandévennecGardenGardenFort du Questel9.6 km west, in BrestMuseumMuseumCinémathèque de Bretagne6.9 km southwest, in Brest
MuseumFort Montbarey12 km southwest, in BrestFortFortTour Vauban21 km southwest, in Camaret-sur-MerTheme parkTheme parkLa Récré des 3 Curés10 km northwest, in Milizac-GuipronvelMuseumMuseumChâteau de Kerjean26 km northeast, in Saint-VougayAbbeyAbbeyAbbaye Saint-Mathieu de Fine-Terre29 km west, in PlougonvelinPlaces within 40 km of Guipavas with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Guipavas itself, but within 5 km there are Conservatoire botanique national de Brest, Océanopolis, Château de Mesléan and Manoir de Lossulien.
No museum or gallery is mapped in Guipavas or within 5 km.
The nearest with articles in both French and English Wikipedia: Dassault Super-Étendard (16 km), Château de Brest (7.9 km), Tour Tanguy (8 km), Château de Joyeuse Garde (6.9 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 Guipavas, 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.