Château de Larroque-Toirac
Castle in Larroque-Toirac in the Lot département of France.
Each edition grades its towns against each other only.

For a trip from Gréalou, Grotte du Pech Merle is 19 km away. None of our places to visit is in Gréalou; 2 are within 5 km of its centre.
Château de Larroque-Toirac aside, the next best known 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.
At 4.9 km, Château de Camboulan is the farthest one out.
The first 20 on the list, numbered as below. The shape is the commune of Gréalou; the orange dot is its centre. © OpenStreetMap contributors · commune boundary: IGN
They are all châteaux or heritage sites: 2 in all.
Dark: in Gréalou. Light: in the communes within 5 km of its centre.
Its 2 places all lie within 5 km of its centre.
Castle in Larroque-Toirac in the Lot département of France.
Nothing is mapped in Gréalou itself; these are within 5 km of its centre.
Grotte du Pech Merle, at 19 km, heads the 12 day trips.
MuseumMusée Champollion14 km northeast, in FigeacChâteauChâteauChâteau d'Assier15 km north, in AssierChâteauChâteauChâteau de Cabrerets19 km west, in CabreretsChâteauChâteauChâteau de Cénevières13 km southwest, in CénevièresChâteauChâteauChâteau de Lacapelle-Marival21 km north, in Lacapelle-MarivalPlaces within 40 km of Gréalou with an article in both French and English Wikipedia, nearest first.
Nothing is mapped in Gréalou itself, but within 5 km there are Château de Larroque-Toirac and Château de Camboulan.
No museum or gallery is mapped in Gréalou or within 5 km.
The nearest with articles in both French and English Wikipedia: Grotte du Pech Merle (19 km), Gouffre de Padirac (37 km), Cathédrale Saint-Étienne de Cahors (36 km), Château de Najac (36 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 Gréalou, 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.