Everyone knows Moslems face Mecca when they pray. Every mosque has a niche to indicate the direction of the Kaaba, so they will know what direction to face. But what happens in the antipodes? According to this WikiMapia note, when you are at the spot that is exactly the opposite of the Kaaba اٍكتشاف/ اٍبراهيم أحمد علي المصري on the globe (a spot in the Pacific Ocean somewhere between Hawaii and Australia) you can face any direction at all:
Black Stone of Kaaba, Makkah (Mecca) Anitpodes Point
the coordinator of this point is
which is Antipodes (oppisit) coordination of blackstone of Kaaba, Makka
Hmm. I don’t think I would want to face in the direction of Mururoa, southeast of that spot, where the French conducted nuclear testing.
Much better I think is the Bizarre Atoll to the southwest, with its oddly symmetrical rows of palm trees.