Lego Store Paris, Les Halles

100% for the kids, I think this might be the biggest Lego Store in Paris? Accordingly, it's got all the nice models of Notre Dame and Tour Eiffel all done in Legos, which are fun to see. Additionally, there's the surrounding Forum des Halles, which is a big shopping mall you can check out; as well as a pretty sizable public playground in the adjacent Jardin Nelson Mandela where the kids can run around for a bit.