Musement Extra 10% Off on Paris City Tour at Night Coupon Code. You have the opportunity to choose between visiting Paris by night on a panoramic air-conditioned coach or an open-top bus. Musement is a multi-platform booking service for guided tours, tickets to museums and attractions, city passes and much more around the world. It offers services through www.musement.com, iOS and Android Apps. Their service initially focused on Europe and then progressively expanded to rest of the world.