If anything, just change it by season. Add some snow in winter, and more rain in spring. Change the trees in the fall. But even then, it would be backwards for half the world. (It would help us figure out where the Tower is though)
There are too many religions to dance around and other counties with different holidays to try to go by holidays.
English
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It's in Russia, which is the northern hemisphere
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It's never been proven where it is. The orientation of the sun actually suggests Chile.