This photograph shows the access to the artificial lake located under the stage of the Opera Garnier and created by its architect Charles Garnier to stabilize the foundations of the building in Paris on December 9, 2024. Inaugurated on January 5, 1875 and classified as a historic monument, the Palais Garnier will celebrate its 150th anniversary, it houses part of the Paris Opera which presents ballets and lyrical works on stage. (Photo by JOEL SAGET / AFP)