The World Beyond is an as of yet unseen location in the PJ Masks television series. It is the world from which Pharaoh Boy originally comes, and where he resides between his plans to take over the world.
Considering that Pharaoh Boy is a mummy, the World Beyond may or may not be an afterlife of some sort. It can be entered and exited through a portal hidden inside a sphinx statue in the Museum. In his debut episode, Pharaoh Boy admits that he has been spying on the Museum and the PJ Masks for some time already from the World Beyond.