If you go
Musee national de l’histoire de l’immigration (National Museum of the History of Immigration) Palais de la Porte Doree, 293, Ave. Daumesnil 011-33-1-53-59-58-60 histoire-immigration.fr The art deco palace houses the National Museum of Immigration and the Tropical Aquarium in the basement. Open Tuesday through Friday, 10 a.m.-5:30 p.m.; Saturday and Sunday, 10 a.m.-7 p.m. Ticket sales end at 4:45 p.m. on weekdays and 6:15 p.m. on the weekends. Regular admission costs about $5 and about $7 during temporary exhibitions.