Elmo's World is a segment of the children's television show Sesame Street featuring Elmo, a small red monster who speaks in third person and is perpetually 3½ years old. The show also features Mr. Noodle, a human mime character, and Elmo's pet goldfish, Dorothy. The segment was first introduced the beginning of its 30th season on November 16, 1998.
The segment takes place in a computer animated crayon-drawn room imagined by Elmo. Each day, the segment begins with Elmo announcing the topic for the day. Then, there is a series of skits and interviews centered on that topic. The skits and interviews are essentially the same everyday only changing the subject matter. They also always appear in the same repetitive order.
In the Season 37 Sesame Street episode "Cookie World", the first 10 minutes of that episode include a spoof of the segment with Cookie Monster in place of Elmo. In one episode where Bert enters Elmo's World, Elmo states that he does not know how to get out of Elmo's World.