This giant movie theater and its art-deco façade are a truly bizarre sight on the otherwise unremarkable boulevard Poissonnière. Built in the 1930s, the Rex is home to one of the most spectacular cinema rooms you'll ever see, decorated with « Mediterranean » paintings and ornaments, and with a dome 100 feet above the ground. You can see movies and shows there, but you can also just take a tour and hear about the building's fascinating history.