Koma Shrine高麗神社 - Credit: Wikimedia Commons
is a Shinto shrine located in the city of Hidaka, Saitama. The work "Koma", pronounced in Japanese as "Koryō" is the ancient Japanese name for Korea, specifically the ancient Korean kingdom of Goguryeo, and the main temple kami of this shrine is the deified Prince Go Yak'gwang (高若光), son of the last king of independent Goguryeo. Read more on Wikipedia
Source: en.wikipedia.org