Respuesta :

Different- mount olympus is in nyc at the top of the empire state building (an actual place in the human world) & above the world (very top floor that does not really exists to humans); underworld is a place that non humans never see/know of & it's under the world
lilbeanny

Answer:

hi

Explanation:

same - They both have gods ruling them. (I believe) they are both impossible for a mortal to get to.

Thats all I have

Hope this helps <3