noun
golden palace; magnificent palace
Literary or poetic term for a splendid, gold-adorned palace. Not used in everyday conversation.
物語の舞台は、黄金に輝く金殿だった。
The story was set in a golden palace shining with gold.
宮殿 is the standard word for 'palace' in modern Japanese, while 金殿 is a literary term emphasizing gold or magnificence.
Compound of 金 (kin, 'gold') and 殿 (den, 'palace'). The exact historical derivation is uncertain; the spelling is conventionally associated with a magnificent gold-adorned palace.