Mareil-Marly / Sartrouville

The Château-Neuf de Saint-Germain-en-Laye ("New Château of Saint-Germain-en-Laye") was a French château in Saint-Germain-en-Laye, now mostly demolished, which served as a royal residence from the second half of the 16th century until 1680. It was built on the grounds of the older Château de Saint-Germain-en-Laye, which became known as the Château-Vieux (Old Château).

The Communauté d'agglomération Saint Germain Boucles de Seine is the communauté d'agglomération, an intercommunal structure, in the western suburbs of Paris. It is located in the Yvelines and Val-d'Oise departments, in the Île-de-France region, northern France. It was created in January 2016. Its population was 341,337 in 2014.

The canton of Sartrouville is an administrative division of the Yvelines department, northern France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Sartrouville.It consists of the following communes:Maisons-LaffitteLe Mesnil-le-RoiSartrouville

Le Pecq is a commune in the Yvelines department in the Île-de-France region in north-central France. It is located in the western suburbs of Paris, 18.4 km (11.4 mi) from the center of Paris.

Le Port-Marly is a commune in the Yvelines department in the Île-de-France in north-central France.

The Château de Monte-Cristo is a writer's house museum located in the country home of the writer Alexandre Dumas, père.

Sartrouville is a railway station serving Sartrouville, a northwestern suburb of Paris, France. It is situated on the Paris–Le Havre railway.