Bethalto Memorial Hospital

In season two, Albert Fikes awakes to find himself as a patient of Bethalto Memorial Hospital in Bethalto, Illinois. There, the staff tries to convince him that he is in World One and the Etwhon Cluster is nothing more than his delusion.

It is eventually revealed that the hospital is a level-three world, created by the Memory Doctors in an attempt to glean more information about World One from Albert. The most obvious clue to this is that Doctor Cuckoo appears exactly the same in both realities.