Eden Project

Built in 2001, the Eden Project turned a disused Cornish claypit into a temperature-controlled environment for an entire rainforest, as well as hundreds of other plants. The complex is dominated by 2 biomes (eco domes), constructed from tubular steel and hexagonal cladding panels made of a special plastic. The project has brought massive economic and social changes to the region and it won the ICE Merit Award in 2002 as an outstanding example of civil engineering.