Haimen Agricultural Exhibition Hall

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Haimen Agricultural is an exhibition hall for seeds and farming culture in Nantong, China. The form is taken from the traditional barn, with a square outer volume and a round central silo. The outer skin is made of ultra high performance concrete, which forms a visual contrast with the glass curtain wall. A rotating open stair links four floors around a central atrium, and a folded roof plate brings daylight to the top floor. The building covers 4000 square meters and offers a place for display and exchange.