A Ferris wheel is a large, rotating amusement ride consisting of a vertical rotating wheel with passenger cabins attached along its circumference. It was invented by George Washington Gale Ferris Jr. for the 1893 World's Columbian Exposition in Chicago. Ferris wheels are often found at fairs, amusement parks, and tourist attractions, providing riders with a panoramic view of the surrounding area. Typically, a Ferris wheel operates by rotating around a central axis, allowing the cabins to rise and fall as the wheel turns. They can vary in size, with some reaching heights of over 200 feet. Safety features, such as secure seating and safety bars, ensure a safe experience for riders.