Ealing Circle was a nature reserve in Ealing.

Clyde Langer and Rani Chandra once went there on a school trip. They saw nature and animals. Clyde Langer later said that this was the most boring day of his life.

Gavin often went there. He felt home there and was hiding there from the red and yellow robots. It was also the place where Gavin got to know that his father was an alien king and he was going to become the new king. (TV: The Empty Planet)