La Contemporaine. Bibliothèque, archives, musée des mondes contemporains (The Contemporary. Library, archives and museum of contemporary worlds) is a French cultural and scientific institution composed of a library, an archive center and a museum, specialized in the history of the 20th and 21st centuries . Founded in 1918, it is located since 2021 in a new building on the campus of the Paris Nanterre University .
The Hôtel des Invalides (French: [o.tɛl dez ɛ̃valid]; French for 'House of Invalids'), commonly called les Invalides ([lez ɛ̃valid]; lit. 'the Invalids'), is a complex of buildings in the 7th arrondissement of Paris, France, containing museums and monuments, all relating to the military history of France, as well as a hospital and an old soldiers' retirement home, the building's original purpose. The buildings house the Musée de l'Armée, the museum of the Army of France, the Musée des Plans-Reliefs, and the Musée d'Histoire Contemporaine. The complex also includes the Cathedral of Saint-Louis-des-Invalides, the national cathedral of the French military. It is adjacent to the Royal Chapel known as the Dôme des Invalides, the tallest church building in Paris at a height of 107 metres (351 ft). The latter has been converted into a shrine to some of France's leading military figures, most notably the tomb of Napoleon.