"Thus let him suffer the wrath of Darkseid." - Darkseid, from Crisis on Infinite Earths
Created by Jack Kirby, the planet of Apokolips, with its gigantic fire pits, is the homeworld of the maniacal despot Darkseid, as well as the barrier between the Fourth World and the rest of the known universe. I would not recommend making vacation plans there. But if you do, make sure you go through Priceline when booking your Apokolips hotel reservations.
Check out the Heavenly Body of the Week Space Database
That's it gang. See ya 'round the web.