Izena Tamaudun
Izena, Japan
Izena Tamaudun (Okinawan, Ijina tamaudun) is one of the three royal mausoleums of the Ryukyu Kingdom, along with Tamaudun at Shuri Castle and Urasoe yōdore at Urasoe Castle. It is located near Izena Castle in Izena, Okinawa. It was built in 1501 by King Shō Shin.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).