Finnish paganism
The Finns believed that Earth was flat like a disc. Above Earth was sky-dome, a pot that was upside down. In the middle of the Earth was a pillar holding the sky, so that it did not drop. The North star was a nail in the top of this pillar. Land of the dead, Tuonela, was under Earth. The way to Tuonela was at the base of pillar that holds the sky. The rotational movement of the pillar caused a great whirl of water at the base of the pillar called Kinahmi and this could be used as access way to Tuonela.