A somewhat recurring setting in science-fiction is of "unphysical intrusions". Realms, usually spherical, which intrude upon human society, within which commonly-held laws of physics and causality do not apply.
I've always assumed it to be the unique invention of Arkady and Boris Strugatsky in Roadside Picnic (1971). I also assumed that Darker than Black was inspired by "Roadside Picnic". Though not having read Annihilation by Jeff VanderMeer, this description got me to wondering about the history of such "unphysical intrusions".
I'm interested in the development of this literary device
as well as any possible relation between the three works mentioned (this will be another question).
After the artfully insidious answer by sjl I have to amend my requirements of "unphysical intrusions" to utterly incomprehensible areas on Earth. That is, unphysical rather than nonphysical because rather than a different set of physical laws, there are simply no laws, or at least none that can ever be understood. And I mean completely and forever beyond human understanding.
At least until someone provides yet another example that doesn't belong while inexplicably turning the question on its head...