South of Osaka, the Mozu district of Sakai is marked by enormous, tree-covered mounds whose outlines can be difficult to read from street level. These are kofun: burial mounds built for members of ancient Japan’s elite, especially during the Kofun period, broadly dated from the third to sixth centuries. Mozu is one of two clusters in the UNESCO-listed Mozu-Furuichi Kofun Group. The World Heritage property brings together 49 tombs in 45 components across the two areas; it is not a single excavated cemetery or a museum enclosure. Its importance lies in the mounds’ scale, varied geometry, setting within a modern city and evidence for an organized funerary culture.
The mounds take several forms, including circles, squares, scallops and the distinctive keyhole plan: a round rear section joined to a trapezoidal front. Many were surrounded by moats and decorated with haniwa, clay figures shaped as cylinders or representations of people, animals, houses and objects. Some tombs contained weapons, armor and ornaments. UNESCO considers the group an exceptional material record of the period’s social hierarchy and burial practices. Because the landscape has been urbanized, visitors encounter individual mounds amid roads, parks, homes and rail lines; that contrast is part of the site’s present-day character, not a sign that the heritage is confined to a remote archaeological zone.
