Communauté de communes des Villes Sœurs

Eu (IPA: [ø] ) is a commune in the Seine-Maritime department in the Normandy region in northern France. Eu is located near the coast in the eastern part of the department, near the border with Picardy. Its inhabitants are known in French as the Eudois.

The Château d'Eu (French pronunciation: [ʃato dø]) is a former royal residence in the town of Eu, in the Seine-Maritime department of France, in Normandy. The Château d'Eu stands at the centre of the town and was built in the 16th century to replace an earlier one purposely demolished in 1475 to prevent its capture by the English. The chapel contains the tombs of Henry I, Duke of Guise, and his wife, Catherine de Clèves, who embarked on the construction of the château in 1578. The building was completed almost a century later by the Anne Marie Louise d'Orléans, Duchess of Montpensier, la Grande Mademoiselle. Between 1830 and 1848, the château, which had been the property of the House of Orléans since its acquisition by La Grande Mademoiselle in October 1657, served as King Louis-Philippe I's summer residence. Louis-Philippe twice entertained Queen Victoria at the château, from 3 to 7 September 1843 and from 8 to 10 September 1845. The château became residence of the Brazilian Imperial Family during the exile. Isabel, Princess Imperial of Brazil, who brought slavery to an end in Brazil in 1888, died at the château in 1921. Her husband was Prince Gaston, Count of Eu, a grandson of King Louis Philippe I. Their eldest son, Pedro de Alcântara, Prince of Grão-Pará, sold the château to the Brazilian entrepreneur Assis Chateaubriand. In 1964, the city of Eu acquired the château, in which, in 1973, it installed its City Hall and created the Musée Louis-Philippe. In 1987, the castle, its dependencies and park were classified a Monument historique by the French Ministry of Culture.

The Gare d'Eu (Eu station) is a railway station in the commune of Eu in the Seine-Maritime department, France, in Normandy. It is the main station for Eu; the former Eu-la Mouillette was better located but served by only one rail line.

The gare d'Eu-la-Mouillette (Eu-la Mouillette Station) is a former railway station in the commune of Eu in the Seine-Maritime department, France. The station was served by TER Picardie trains from Beauvais to Le Tréport-Mers. Although it is closer to the town centre of Eu, it is not the main station: that is Eu station. It was closed in 2011.

Ponts-et-Marais (French pronunciation: [pɔ̃ e maʁɛ]) is a commune in the Seine-Maritime department in the Normandy region in northern France.

Mers-les-Bains (French pronunciation: [mɛʁs le bɛ̃]) is a commune in the Somme department in Hauts-de-France in northern France.

Étalondes (French pronunciation: [etalɔ̃d]) is a commune in the Seine-Maritime department in the Normandy region in northern France.

Saint-Pierre-en-Val (French pronunciation: [sɛ̃ pjɛʁ ɑ̃ val]) is a commune in the Seine-Maritime department in the Normandy region in northern France.

The Karlostachys Jungle Garden, or Jardin Jungle Karlostachys, is a jungle park and botanical garden in Eu, in the department of Seine-Maritime in Normandy, in northern France. The garden is owned by Charles Boulanger, who has opened it to the public for guided tours by appointment. The first tours took place in 2012. The garden covers an area of 15 hectares, including both the botanical collection, local vegetation and a small nursery for rare species. It is set in a wild forest environment that includes the preservation of local fauna and flora.

Oust-Marest is a commune in the Somme département in Hauts-de-France in northern France.

Saint-Quentin-la-Motte-Croix-au-Bailly (French pronunciation: [sɛ̃ kɑ̃tɛ̃ la mɔt kʁwa o baji]; Picard: Saint-Quentin-la-Motte-L'Croé-au-Bailly) is a commune in the Somme department in Hauts-de-France in northern France.

The Le Tréport–Mers station (French pronunciation: [lə tʁepɔʁ mɛʁs]) is a railway station in the commune of Le Tréport in the Seine-Maritime department, France. It is only a few metres from Mers-les-Bains, which is in the Somme department.