Ferris Wheel is a large turning wheel equipment in which gondolas are hung for passengers to take. After passengers are gradually lifted up when the wheel works, they can have a glimpse of the beautiful scenery around the park. Ferris Wheel is common to see at amusement park, theme park and funfair, and is called “3 treasures of playground” with Pirate Ship and Carousel. But it can be at other places to be used as a viewing platform.