The Bellagio Conservatory is a must to visit every season to see the fantastic floral displays that they come up with 4 times per year. The thousands of flowers, plants, fountains, fauna, and other items are usually thematic, and I've seen everything from a penguin display (with moving parts), a giant windmill, and the current display which includes 30-foot tall hanging jellyfish! The atrium is always fun to see and a great photo op!