Bgztl
Bgztl is an inter-dimensional planet that occupies the same space as Earth, but on a different dimensional plane. The inhabitants of Bgztl possess the ability to dematerialize their bodies into an intangible phantom-like state. The most famous Bgztlian is Tinya Wazzo, a longtime member of the Legion of Super-Heroes as Phantom Girl.
History
Original Continuity: New Earth

Bgztl is the home world of the Bgztlian Tinya Wazzo, more famously known as Phantom Girl, a long standing member of the Legion of Super-Heroes. Bgztl itself decides in what its natives call the "Buffer Zone", also known as the Phantom Zone. This made Bgztl extra-dimensional position out of Earth's dimension. The only member of the Bgztlian race able to go between both dimensions was the Legionnaire Phantom Girl. It is also the home world of both Solon Darga, who called himself Phantom Lad, a rejected applicant for the Legion of Super-Heroes and Ron-Vizl, a ruthless paid assassin, also hails from Bgztl.
Creation
Bgztl first appeared in the pages of DC Comics series Superboy #216 The Final Eclipse of SunBoy, March 1976. It was created by Cary Bates.