Sesame Place Philadelphia is a children's theme park and water park based on the children's educational television program Sesame Street. It is one of 12 theme parks owned and operated by United Parks & Resorts and under an exclusive license from Sesame Workshop, the non-profit owner of Sesame Street. Located outside of Philadelphia in Middletown Township, Bucks County, Pennsylvania (with a Langhorne mailing address) it is the oldest of the two Sesame Street theme parks in the United States (the other being Sesame Place San Diego). Sesame Place Philadelphia includes a variety of rides, retail locations, restaurants, shows and water attractions suited for young children, and is the first theme park in the world to become a certified autism center.