Barkingburg is a kingdom located far away from Adventure Bay, similar to London, England. The PAW Patrol is sometimes called on to save the kingdom from evildoers. It is a major location in Season 4.
A villain pup named Sweetie attempts to take over the land in the "Mission PAW" subseries, and in "Jet to the Rescue", the sinister Duke of Flappington tries to turn it into his kingdom by stealing the levitation gem.