Palace
A palace was a name for a ornate and lavish residence, typically one home to some kind of dignitary.

In the movie The Court Jester, there was a crystal chalice from the palace, which had a figure in the shape of a palace. This chalice had a brew that was true. ()

During the 2250s, in the mirror universe, the Terran Empire had a mobile palace, located on the  flagship , for the empire's emperor. In 2257, this palace was destroyed, along with the rest of the starship, by the . ()

Appendices

Background information 
According to technical data prepared for the San Diego Comic Con in 2018, the Charon palace, located on the upper decks of the starship, had a throne room with a trapdoor. The emperors quarters were located many decks down from the palace, close to the mycelial 'sun'.

External links 
 
Architecture
Spacecraft sections