Regent's Park, near Baker Street, was the location of the London Zoo. (PROSE: The Evolution Episode, AUDIO: Storm Warning, Wild Animals)
The Fourth Doctor and Sarah Jane Smith arrived at the zoo in the 20th century. (AUDIO: Doctor Who and the Pescatons)
In 1983 Harry Sullivan had a flat near Regent's Park. (PROSE: Harry Sullivan's War)
The Eighth Doctor visited the park and the zoo in 2020 when trying to find the man who shot Liv Chenka. He later freed some birds from zoo. (AUDIO: Wild Animals)