If you "relax" your notion of what is a "nation", even POTUS is at fault at this rule - USA has states (50), territories (5), unhabited territories (9), district (1), and a lot of extra-continental bases and even disputed territories. [0]
I believe USA also claims land around any Apollo device at the Moon. [no source]
If we're talking about claims to the moon, the Bishop of Orlando is Bishop of the Moon, because the Apollo missions took off from Cape Canaveral, in the Diocese of Orlando.
I believe USA also claims land around any Apollo device at the Moon. [no source]
[0] https://en.wikipedia.org/wiki/List_of_states_and_territories...