In its latest session, UNESCO has added the stilt-architecture landscapes of the Sepik River in Papua New Guinea to the World Heritage List. The designation covers the Spirit Houses (Haus Tambaran) and family dwellings that represent a unique adaptation to the seasonal flood cycles of one of the world's most complex river systems. The architecture is renowned for its towering gables and intricate totemic carvings that serve as a physical record of oral histories.
UNESCO officials noted that the Sepik's architectural heritage is inextricably linked to the intangible traditions of the local Iatmul and Abelam communities. The new status aims to support local stewardship and sustainable tourism, ensuring that the traditional knowledge required to build and maintain these massive wooden structures is passed down to future generations amidst modern social changes.