Palais de la Porte Dorée is an Art Deco landmark built for the 1931 Colonial Exhibition, with a long sculpted facade and interiors that still speak to the politics and spectacle of that event. Today it houses the National Museum of the History of Immigration and a family-friendly aquarium.
It is a strong choice for travellers who want Paris beyond the central museum circuit: architecture, history, and an easy aquarium visit in one building near the Bois de Vincennes.