Ecorium of the National Ecological Institute reflects the ecosystem of the earth that unfurls the grand epic of nature. Ecorium, where five climatic zones from that of the equator to that of the pole are represented in each green house, makes people aware of the significance of the earth through the synthetic experience of ecological structure. The Ecorium has the following three key concepts. First, ¡®From the Nature¡¯, which expresses the vigorous and dynamic energy through the motive of organic lines of nature and becomes a representative symbol of National Ecological Institute. Second, ¡®Be the Nature¡¯, the Ecorium reproduces the ecological environment of the earth by the up-to-date technology and its know-how. Third, ¡®With the Nature¡¯, which is a complex ecological experience space inducing people to immerse themselves in and communicate with nature.