Palace of Queen Arwa
Jibla, Yemen
The Palace of Queen Arwa (lit. 'Palace of the Noble Queen') was the residence of the Yemeni Queen Arwa al-Sulayhi, who ruled in the 11th century CE. It is located in the town of Jibla. The palace is today in a ruined state, although there are efforts to restore it. As the report submitted by Min. of Culture - General Organization for the Preservation of Historic Cities - President Office to UNESCO, the extensive ruins of the Queen's Palace had 365 rooms.
Palace data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).