Moon Castle

The Moon Castle was the home of the royal family during the first Silver Millennium. Inhabitants include Queen Serenity and Princess Serenity, as well as the Inner Senshi and their feline advisors, Luna and Artemis. It was guarded, along with the rest of the Solar System, from outside invaders by Sailor Uranus, Sailor Neptune, and Sailor Pluto, though those Senshi were not known by the vast majority of those of the Inner Kingdoms, including that of the Moon.

Well-known features of the palace include forbidden passages that led to the Space-Time Door, the Chamber of Prayer which housed the Crystal Tower at the centre of the Castle, and the Holy Blade. The castle also had a highly advanced computer system.

The Moon Castle was destroyed and left in ruins after the attack of the Dark Kingdom. However, the castle was restored after Sailor Moon defeated Metalia, albeit uninhabited.

In the crossover My Little Otaku Soldier, The Moon Castle was the home of Princesses Serenity and Andriette. It now stands abandoned and dilapidated as much of it was destroyed during the battle between Serenity and Dark Star.