Eden Project construction. View from the ground of workers during the construction of a geodesic dome for the Eden Project. Each facet will hold an inflated bubble of clear ethyltetrafluoroethylene plastic, some seen in place here. Eden is intended to show the diversity of plant life across the world, and how humans interact with it. The domes (biomes) will contain enclosed environments including rainforest and warm temperate zones. The biomes cover over 22,000 square metres in total. The largest is 55 metres in height. They are posi- tioned on a south-facing bank so that they receive the maximum amount of sunlight. Eden, in Cornwall, England, will be completed by spring 2001.