Eco-Arte, artefact museum which emphasized the value of Lenggong Valley in Perak, Malaysia. Lenggong Valley is the first UNESCO titled world heritage site in Malaysia and also the earliest human traces found in Malaysia. Local-friendly material, rammed earth are widely used for the building material to sustain the building on the strictly protected site. Organic form of building plan to blend into the hilly landscape context and create all in one form to the site.