The main part of the Liberty formed a walled precinct within the city ( which was otherwise not walled ) .
This included Wells Cathedral , the Cathedral Green , the Bishop 's Palace , the Old Deanery , and Vicars ' Close .
The main part of the Liberty formed a walled precinct within the city ( which was otherwise not walled ) and this included Wells Cathedral , the Cathedral Green , the Bishop 's Palace , the Old Deanery , and Vicars ' Close .