Walk in the park of Saint-Cloud

The International Bureau of Weights and Measures (French: Bureau international des poids et mesures) is an intergovernmental organization that was established by the Metre Convention, through which member states act together on matters related to measurement science and measurement standards. The organisation is usually referred to by its French initialism, BIPM.

Hauts-de-Seine (French: [o d(ə) sɛn] (listen); literally "Seine Heights") is a department of France located in the region of Île-de-France. It is part of the Grand Paris as it covers the western inner suburbs of Paris. With a population of 1,603,268 (as of 2016) and a total area of 176 square kilometres (68 square miles), it is the second-most highly densely populated department of France.

The Château de Saint-Cloud was a palace in France, built on a site overlooking the Seine at Saint-Cloud in Hauts-de-Seine, about 5 kilometres (3.1 mi) west of Paris. On the site of the former palace there is currently a large park, the Parc de Saint-Cloud, that is owned by the state.The château was expanded by Phillipe of France, Duke of Orléans in the 17th century, and finally enlarged by Marie Antoinette in the 1780s.

Sèvres (, French: [sɛvʁ] (listen)) is a commune in the southwestern suburbs of Paris, France. It is located 9.9 kilometres (6.2 miles) from the centre of Paris and is in the department of Hauts-de-Seine in the region of Île-de-France.The commune is known for its famous porcelain production at the Manufacture nationale de Sèvres, which was also where the abortive Treaty of Sèvres was signed, and for being the location of the International Bureau of Weights and Measures.

Ville-d'Avray is a commune in the western suburbs of Paris, France. It is located 11.9 km (7.4 mi) from the center of Paris. The commune is served by the Boulogne-Billancourt prefecture, of the Hauts-de-Seine department.

The Parc de Saint-Cloud, officially the Domaine National de Saint-Cloud, is a domaine national (federal territory), located mostly within Saint-Cloud, in the Hauts-de-Seine department, near Paris, France.The park, which covers 460 hectares, was a nature reserve until 1923. It is considered one of the most beautiful gardens in Europe, and in 2005 the park was awarded Notable Garden status.

Pavillon de Breteuil is a building located in Saint-Cloud, France near Paris. It was inaugurated by Louis XIV in 1672. It is in the park of the former royal Château de Saint-Cloud, which was destroyed in 1870.The Pavillon du Mail became known as the Pavillon de Breteuil in 1785. The building had been used since 1875 by the International Bureau of Weights and Measures (French: Bureau international des poids et mesures).

The railway of the Prince Imperial (French: Chemin de fer du Prince impérial) was the first documented model railway in the world.

Lycée Jean Pierre Vernant is a senior high school/sixth-form college in Sèvres, Hauts-de-Seine, France, in the Paris metropolitan area.The school serves Sèvres, Chaville, Saint-Cloud, and Ville d'Avray.It was formerly known as the Lycée de Sèvres. As of 2016 it has 190 teachers and 1,972 students, with 1,522 secondary students and 450 in the superior (supérieur) level.

The canton of Saint-Cloud is an administrative division of the Hauts-de-Seine department, in northern France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Saint-Cloud.It consists of the following communes:GarchesMarnes-la-CoquetteSaint-CloudVaucressonVille-d'Avray