When is a Listing not a Building?

A Listed Building is one added to the National Heritage List for England, the official and up-to-date statutory list of all protected historic buildings and sites in England. But when is a Listing not a Building? Listed Buildings include castles and churches, public offices and private mansions, vernacular and industrial buildings, and so on. But not all Listed Buildings are actually buildings. There are a number of Listed structures in Headingley, which are not buildings. Can you place the Listed not-Buildings above? Click on the links for answers and info.