Sky Garden of Babylon

The Sky Garden of Babylon (バビロンの「空中庭園」 Babiron no "Kūchū Teien", literally meaning "Aerial Garden of Babylon") is one of the nine legacy of the Ancient Civilization Paruteno (古代文明パルテノ Kodaibunmei Paruteno) and was created by the genius Professor Regina Babylon approximately more than 5000 years ago before being found by Touya Mochizuki.

Information
The Garden was created as a hobby by the professor and a gynoid Francesca was employed to manage everything within the garden. It is called as sky garden because it is floating on the sky and has four Paruteno Dome which granted the garden invisibility. According to Francesca, some people used to called the Sky Garden as Nirai Kanai (ニライカナイ Niraikanai). Because of the peaceful and relaxing atmosphere created by the garden architecture, it used as a place for healing one's mind.

Trivia

 * The epithet given to Sky Garden, Nirai Kanai, is based on the Ryukyuan religion. It is a place where gods take crops and farming tools for their people.