This is ALWAYS a stop for me when I'm in Vegas. It's a quick visit inside the Bellagio, just past the front desk area. The room opens up to a glass dome so everything is beautifully lit by natural light. Much like the Rose Parade, there are themed displays here composed of various plants (mostly flowers). They're far less strict on only using plant matter though, so you'll find plastic sculptures to enhance the scene, or sometimes even bits of candy around the holidays. I love that the theme is constantly changing, so every time you come back, you'll probably see something new.