Hell is in the sky
A realization I had while reading the Srimad-Bhagavatam: the place commonly known as "hell" is not underground or anything like that, but in the sky. In the place between heaven and earth.
"Living entities who are associates of Rudra develop in the third mode of material nature, or ignorance. They are situated in the sky between the earthly planets and the heavenly planets." SB3.6.29
So, to me that means "hell", or the ideal living conditions for those in the mode of ignorance, is situated in space, on other planets in the solar system, on asteroids, etc.