One of the plot hooks tucked away in The Brilliant Book 2012 had Rory speculating that there's a reason Munch's The Scream keeps getting stolen.
But this sent me haring off in another direction...
A Renaissance group scene stolen from the National Gallery... revealed as the wall it's on turns towards us... on the outside of a satellite high above the Earth.
"And... is that the Mona Lisa?"
"One of the spares. ... Long story. Anyway, look closer, her hair's over one shoulder."
"So, what are they doing here?"
"Good question. Excellent question. For the benefit of passing spacecraft that can fly up and take a closer look? Nobody dedicates a museum to me for another eight hundred years..."