Tartarus

Tartarus (冥府の門, タルタロス, Tarutarosu) is a Castle located at the Hylian Fields of Heaven Tail.

Location and Building
The Tartarus convenes in a large building located in what appears to be a barren wasteland. Standing among the rocky landscape, the building takes the form of a giant, slight ruined, castle. The structure itself is very big in size, containing at least three separate sections all atop one another. The two main bodies of the castle are noticeably squarer in shape and decorated with numerous crenulations, whilst the turrets and roof of the castle are more curved, their balustrade lined with decorative machicolations and their spires topped with fancy ornaments. At the gate to the castle stand two large statues. Surrounding the Tartarus and protruding from the rock are a number of spines, these appearing quite large in size. This castle itself is located on a floating island, shaped like, as well as named, Laputa.

Trivia

 * Tartarus, in Greek mythology, is a deep, gloomy place, a pit, or an abyss used as a dungeon of torment and suffering that resides beneath the underworld.