The Eden Project was built inside a disused china clay pit near St Austell in Cornwall,…

The Eden Project was built inside a disused china clay pit near St Austell in Cornwall, transformed from a barren 60-metre deep crater into one of the most visited attractions in England. It was dreamt up by Tim Smit in 1995, first sketched on a napkin in a pub, and opened in March 2001. Its two giant biomes, designed by Grimshaw Architects to look like soap bubbles that could settle on any uneven surface, house the largest indoor rainforest in the world and a Mediterranean climate garden. The project has put over two billion pounds into the Cornish economy since opening, turning a hole in the ground that nobody wanted into something people travel from around the world to see.​​​​​​​​​​​​​​​​