As a sim owner, I would like to be able to link my visitors to regions I enjoy using prims in-world.
I would like to be able to display the Parcel Image (aka. Parcel Snapshot found in About Land -> Options -> Snapshot). A picture can often tell a thousand words and it would entice visitors to explore more.
I do not need to know the Snapshot UUID. Perhaps it could be done by passing an SLURL or global coordinates to llSetTexture, or a dedicated method like llDisplayParcelSnapshot(location, face) to avoid concerns about sharing parcel image uuid's with non owners.