Pandemonium is a magical other realm.
Pandemonium is a timeless demonic realm, akin to Demogorgana, which its name reveals to be inhabited by a large number of Demons. It is likely possible to travel there from the 2017 Continuum, as Goldie O'Gilt considered it a possibility that Pandemonium had been the realm visited by Scrooge McDuck (though in truth, it had been Demogorgana which he had traveled to).
Behind the scenesEdit
In 17th century poet John Milton's Paradise Lost, the name Pandæmonium is that of the capital of Hell; it etymologically means “the home of all Demons”. The name gained widespread popularity in 20th- and 21st-century fantasy media.