Eta Funayama Kofun (old tomb)

Eta Funayama Kofun is a keyhole-shaped burial mound believed to have been built in the latter half of the fifth century AD.
It is an extremely important archaeological site and is even featured in history textbooks.
The 92 artifacts discovered in Eta Funayama Kofun have collectively been given “national treasure” status and are now held in the Tokyo National Museum.