Atlantic Europe
Estuaries, granite, weather.

Château d’Issan
Cantenac · Gironde — France
Château d'Issan is a château at Cantenac, Gironde, in the Nouvelle-Aquitaine region of France. The recorded building campaigns date from the 13th, 17th and 19th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Issy
Issy-les-Moulineaux · Hauts-de-Seine — France
Château d'Issy is a château at Issy-les-Moulineaux, Hauts-de-Seine, in the Île-de-France region of France. Its architecture is recorded as baroque architecture. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Ivors
Ivors · Oise — France
Château d'Ivors is a château at Ivors, Oise, in the Hauts-de-France region of France. The recorded building campaigns date from the 17th and 18th centuries. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Ivry-la-Bataille
Ivry-la-Bataille · Eure — France
Château d'Ivry-la-Bataille is a château at Ivry-la-Bataille, Eure, in the Normandie region of France. The recorded building campaigns date from the 10th, 11th and 13th centuries. Its architecture is recorded as medieval architecture. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Izeste
Izeste · Pyrénées-Atlantiques — France
Château d'Izeste is a château at Izeste, Pyrénées-Atlantiques, in the Nouvelle-Aquitaine region of France. The recorded building campaign dates from the 15th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’O
Mortrée · Orne — France
Château d'O is a château at Mortrée, Orne, in the Normandie region of France. The recorded building campaigns date from the 15th, 16th, 18th and 19th centuries. Its architecture is recorded as Gothic architecture. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Obies
Obies · Nord — France
Château d'Obies is a château at Obies, Nord, in the Hauts-de-France region of France. The recorded building campaigns date from the 17th and 18th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Ognon
Ognon · Oise — France
Château d'Ognon is a château at Ognon, Oise, in the Hauts-de-France region of France. The recorded building campaigns date from the 17th and 18th centuries. Its architecture is recorded as Renaissance Revival architecture. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Oigny-en-Valois
Oigny-en-Valois · Aisne — France
Château d'Oigny-en-Valois is a château at Oigny-en-Valois, Aisne, in the Hauts-de-France region of France. The recorded building campaigns date from the 16th, 17th and 19th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château d’Oiron
Oiron · Deux-Sèvres — France
Château d'Oiron is a château at Oiron, Deux-Sèvres, in the Nouvelle-Aquitaine region of France. The recorded building campaigns date from the 15th and 17th centuries. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Oissy
Oissy · Somme — France
Château d'Oissy is a château at Oissy, Somme, in the Hauts-de-France region of France. The recorded building campaigns date from the 17th and 18th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Olbreuse
Usseau · Deux-Sèvres — France
Château d'Olbreuse is a château at Usseau, Deux-Sèvres, in the Nouvelle-Aquitaine region of France. The recorded building campaigns date from the 14th and 18th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château d’Olce
Iholdy · Pyrénées-Atlantiques — France
Château d'Olce is a château at Iholdy, Pyrénées-Atlantiques, in the Nouvelle-Aquitaine region of France. The recorded building campaign dates from the 17th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château d’Olendon
Olendon · Calvados — France
Château d'Olendon is a château at Olendon, Calvados, in the Normandie region of France. The recorded building campaigns date from the 17th, 18th and 19th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Olhain
Fresnicourt-le-Dolmen · Pas-de-Calais — France
Château d'Olhain is a château at Fresnicourt-le-Dolmen, Pas-de-Calais, in the Hauts-de-France region of France. The recorded building campaign dates from the 14th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Olivier
Léognan · Gironde — France
Château d'Olivier is a château at Léognan, Gironde, in the Nouvelle-Aquitaine region of France. The recorded building campaigns date from the 15th, 17th and 19th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Olonde
Canville-la-Rocque · Manche — France
Château d'Olonde is a château at Canville-la-Rocque, Manche, in the Normandie region of France. The recorded building campaigns date from the 11th, 12th, 14th, 15th, 16th, 17th and 18th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château d’Omonville
Le Tremblay-Omonville · Eure — France
Château d'Omonville is a château at Le Tremblay-Omonville, Eure, in the Normandie region of France. The recorded building campaign dates from the 18th century. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Onzain
Onzain · Loir-et-Cher — France
Château d'Onzain is a château at Onzain, Loir-et-Cher, in the Centre-Val de Loire region of France. The recorded building campaign dates from the 17th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château d’Ordière
Benest · Charente — France
Château d'Ordière is a château at Benest, Charente, in the Nouvelle-Aquitaine region of France. The recorded building campaigns date from the 15th and 17th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.
- Object type under review
Château d’Ordre, à Macquinghem
Baincthun · Pas-de-Calais — France
Château d'Ordre, à Macquinghem is a château at Baincthun, Pas-de-Calais, in the Hauts-de-France region of France. The recorded building campaign dates from the 18th century. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Orfeuille
Gourgé · Deux-Sèvres — France
Château d'Orfeuille is a château at Gourgé, Deux-Sèvres, in the Nouvelle-Aquitaine region of France. The recorded building campaigns date from the 17th and 19th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.

Château d’Orgemont
Angers · Maine-et-Loire — France
Château d'Orgemont is a château at Angers, Maine-et-Loire, in the Pays de la Loire region of France. The recorded building campaign dates from the 18th century. It is protected as a monument historique at the higher of the two levels (classé). Details are drawn from the Base Mérimée of the French Ministry of Culture.
Château d’Oriou
Saint-Maxire · Deux-Sèvres — France
Château d'Oriou is a château at Saint-Maxire, Deux-Sèvres, in the Nouvelle-Aquitaine region of France. The recorded building campaigns date from the 16th and 19th centuries. It is protected as a monument historique at the second level (inscrit). Details are drawn from the Base Mérimée of the French Ministry of Culture.