If we're talking about the surface of the Earth (i.e. no clever "In the core" stuff) then... everywhere. And by surface lets say that we're talking about everything from the seafloor to the upper atmosphere.
It would probably be cheaper to put it in the caldera of an active volcano than on the Moon. You could certainly get a bathysphere full of archival tape to the bottom of the Challenger Deep for less than you could get the same on the Moon.
It would probably be cheaper to put it in the caldera of an active volcano than on the Moon. You could certainly get a bathysphere full of archival tape to the bottom of the Challenger Deep for less than you could get the same on the Moon.