Second tallest ferris wheel in the world. 360 degree view. If you aren't afraid of heights, it's a gorgeous view and pretty fun. If you catch it right, you can see the fountains at the Bellagio from a wonderful perspective.
The flamingo enclosure at the Flamingo is a cool, free place to see flamingos and other animals pretty close. It's something kids usually like, and it's a fun place for pictures.