Pavillon de Breteuil is a building located in Sèvres

Sèvres

Sèvres is a commune in the southwestern suburbs of Paris, France. It is located from the centre of Paris.The town is known for its porcelain manufacture, the Manufacture nationale de Sèvres, making the famous Sèvres porcelain, as well as being the location of the International Bureau of Weights...

, France

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 near Paris

Paris

Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

. It was inaugurated by Louis XIV

Louis XIV of France

Louis XIV , known as Louis the Great or the Sun King , was a Bourbon monarch who ruled as King of France and Navarre. His reign, from 1643 to his death in 1715, began at the age of four and lasted seventy-two years, three months, and eighteen days...

 in 1672. It is in the park of the former royal Château de Saint-Cloud

Château de Saint-Cloud

The Château de Saint-Cloud was a Palace in France, built on a magnificent site overlooking the Seine at Saint-Cloud in Hauts-de-Seine, about 10 kilometres west of Paris. Today it is a large park on the outskirts of the capital and is owned by the state, but the area as a whole has had a large...

, which was destroyed in 1870.

The building had been used since 1875 by the International Bureau of Weights and Measures

International Bureau of Weights and Measures

The International Bureau of Weights and Measures , is an international standards organisation, one of three such organisations established to maintain the International System of Units under the terms of the Metre Convention...

. Following an agreement signed on 25 April 1969 between the International Committee for Weights and Measures

International Committee for Weights and Measures

The Interglobal Committee for Weights and Measures is the English name of the Comité international des poids et mesures . It consists of eighteen persons from Member States of the Metre Convention...

  (CIPM) and the French government, the Pavillon de Breteuil enjoys extraterritorial rights similar to those enjoyed by embassies.