Visit, if you dare, this eldritch tomb of an unknown emperor who ruled the archipelago beyond Khitai. #kofun #history https://cromwell-intl.com/travel/japan/kofun/konabe.html?s=mc

Konabe Kofun — Megalithic Tombs of Japan's Ancient Rulers
Konabe Kofun is a megalithic tomb with a distinctive keyhole shape. Kofun were built in Japan from the early 3rd to the early 7th century CE. Today they are believed to be the tombs of Emperors.