Serre du Parc Emmanuel Liais

A free botanical park tucked into the city, the Serre du Parc Emmanuel Liais houses over 400 exotic plant species in its greenhouses, plus sprawling gardens that feel worlds away from the surrounding streets. It's quietly impressive — named after a 19th-century mayor and astronomer, the park also features a natural history museum on-site, all within a compact one-hectare space.