Mirage Kingdom
The Mirage Kingdom is a kingdom located somewhere in Hoenn beyond a large desert. It only appeared in the anime, in The Princess and the Togepi and A Togepi Mirage.
It is ruled by a king and queen. The Mirage Kingdom worships Togepi, and even contains a Togepi Temple. The only way one can claim the throne is with a Togepi.
Pokemon Emerald makes a reference to the Mirage Kingdom with the Mirage Tower in a desert.
In The Princess and the Togepi Misty was kidnapped by Team Rocket and taken to the Mirage Kingdom where General Hanson and Team Rocket wanted to steal her Togepi to take over the kingdom. Ash, May, Max, and Brock followed them. Near the end of the fight; Misty's Togepi evolved into Togetic, then Misty left her Togetic to protect the Mirage Kindom and the Togepi within the Mirage Kingdom's mirage. Princess Sara then found a Togepi of her own at the end of A Togepi Mirage