Foremost French art museum located in Paris. The building was a royal fortress and palace built by Philip II in the late 12th cent. In 1546 Pierre Lescot was commissioned by Francis I to erect a new building on the site of the Louvre.
If you want to see the Mona Lisa this is the place. Of course, it’s behind four inches of bullet proof glass because some idiot thought it would be a good idea to shoot it.