Mortals see what they want to see and they perceive everything in a way that makes sense to them. So. Why can't people see that Olympus is on the 600th floor of the Empire State Building? Because the Mist warps what they're seeing.

[Give him a moment to scrub out his hair...] The apples though, yeah. You know mythology. [He sounds a little intrigued by that fact.] Went in to steal an apple, Ladon was not that happy to see me.