Far Realm

The far realm is, by definition, nowhere. It exists outside Realmspace, where reality hasn't properly formed into anything yet. Still, there are things out there. Some speculate that these things were responsible for the First Breaking and some of them were certainly behind the Sunset. They can't enter Realmspace without being ripped apart, but they can influence those inside and can grant them powers to some extent. In fact, this is a common pact for warlocks to make.
Exactly what the far realm consists of is unknown as those within Realmspace are as incapable of going there as the beings from the realm are at entering reality. At least, no one has come back from going there.

Type

Dimensional plane