Caleigha City is an island city located just beyond humanity's border, the Moon, in orbit with the Earth. It is roughly a sphere shape divided into two halves. The lower half faces the Earth and uses specialized materials to cloak itself to the visibility of Earth and it's sensors. The other side is where it's inhabitants mainly live, and is covered with a physical dome that looks clear from the outside looking in. It is home to many diverse sorts of dragons and is considered a neutral area, under the protection of the Aegis, and is used as an in between for travel between to and from the Earth.
The dome simulates an Earth-like environment, and is divided into two primary areas. The first is the city named Caleigha City, and is home to many diverse businesses and complexes. A day night cycle is simulated inside the environment, as well as a full spectrum of seasons. Visibility looking out of the dome is somewhat obscured during the day as there is a simulated blue sky though objects such as space ships can be reasonably visible as though standing on Earth and seeing distant objects in the sky.
The city itself is arranged itself to look something like a familiar human city but with no cars. With tall buildings, and streets that connect to each, three going east/west and three going north/south creating nine intersections. The areas in the town range from a main area in the center of town where buying/selling/trading is, to the southwest is the main hospital, and the north east is where chalk marks and students of magic fill the street.
To the north of the main city is a large area dedicated to woods, lakes and fields containing all sorts of natural greenery that the artificial sun keeps growing. It is often a place of peaceful recreation, and delicately protected and preserved. Many laws within the dome are enforced strictly just to maintain the plants and grass that grows, as it is rare for something like this to exist away from the Earth itself, let alone maintain.