IllumiNations: Reflections of Earth is a fireworks in World Showcase at Epcot. While it's not the best, it is also recommended.
Epcot closes its day with this nighttime spectacular on and around the World Showcase Lagoon. Images are projected upon the Spaceship Earth geosphere as well as on globes floating on the lagoon, as lasers and fireworks punctuate an original soundtrack that celebrates the world around us. Come early on busy days to claim a space on the pathways around the lagoon that will give you a good view of the show.
Walt Disney World