text: The Eden Project () is a visitor attraction in Cornwall, England. The project is located in a reclaimed china clay pit, located  from the town of St Blazey and  from the larger town of St Austell.
  The complex is dominated by two huge enclosures consisting of adjoining domes that house thousands of plant species, and each enclosure emulates a natural biome. The biomes consist of hundreds of hexagonal and pentagonal ethylene tetrafluoroethylene (ETFE) inflated cells supported by geodesic tubular steel domes. The larger of the two biomes simulates a rainforest environment (and is the largest indoor rainforest in the world) and the second, a Mediterranean environment.
  The attraction also has an outside botanical garden which is home to many plants and wildlife native to Cornwall and the UK in general; it also has many plants that provide an important and interesting backstory, for example, those with a prehistoric heritage.
  There are plans to build an Eden Project North in the seaside town of Morecambe, Lancashire, with a focus on the marine environment.
  History
  The clay pit in which the project is sited was in use for over 160 years. In 1981, the pit was used by the BBC as the planet surface of Magrathea in the TV series the Hitchhiker's Guide to the Galaxy. By the mid-1990s the pit was all but exhausted.