Fodor's Expert Review Palais de la Découverte
The Palace of Discovery, a popular science museum in the rear of the Grand Palais complex, has a wide variety of exhibits spread out over two floors under an elegant glass-and-iron roof. Subjects include astronomy, chemistry, biology, physics, and earth sciences. Free audioguides can be downloaded to your smart device, and there are plenty of buttons and levers to press and pull to keep little (and not so little) hands busy. This fun facility—a smaller cousin of the Cité des Sciences et de l'Industrie in Parc de la Villette—also features regularly scheduled demos and 3-D films, along with daily planetarium shows (in French only).