Eden Project, Par

In a 50-meter deep crater, the size of 35 football pitches, are two gigantic geodesic conservatories—the largest in the world. Inside is the most ambitious environmental project that the UK has ever seen. Each biome is a wealth of different climate zones, from arid desert to steamy jungle, complete with thriving plants. Their mission is to promote the understanding of the vital relationship between people and plants and help us understand how to manage our resources responsibly. They use many fascinating displays to achieve this.