The Forbidden Corner is a folly-filled garden open to the public in the grounds of the Tupgill Park Estate near Leyburn in North Yorkshire, England.
The Forbidden Corner consists of a number of follies, woodlands, walled gardens, tunnels and grottoes furnished with statues, installations and other works of art, architecture, animated models and various oddities largely drawn from the the European classical tradition, along with particular fancies of the proprietor and architect. As a whole these are arranged to create a maze for the visitor to explore. No map of the gardens is provided. There is instead an illustrated checklist of items to be found, completion of which will confirm complete exploration of the gardens.