Cité des sciences et de l'industrie
Paris's Cité des sciences et de l'industrie is the biggest science museum in Europe. Surrounded by a big green park, this science and tech center has a number of scientific attractions. Highlights include an IMAX theater, a planetarium, and the decommissioned submarine Argonaute.
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In the planitarium Polaris was too basic in information, was expecting more informations in the presentation
You need to buy an extra ticket to Geoda, I think it´s worthy