story shots) show that the ice tunnel slopes gently  down towards the pyramid entrance, therefore not on top at all. The  whaling station is thus supposedly built on ice instead of rock;  this is a ludicrous proposition as it would only be constructed in a  region where ice melted enough each summer to allow whaling ships to  dock. Anything built on ice that thaws significantly each year would  not last 100 years. This arrangement also places the pyramid and a  large amount of ice below sea