While on holiday in Cornwall, UK my partner and I are checking out The Eden Project. The Eden Project is an educational charity and the largest greenhouse in the world, specializing in diverse biomes and plants from around the globe. The domes maintain tropical, Mediteranian, and temperate environment biomes.
Beyond experiential learning...
If you want to replicate what you see on a 'backyard' small-scale, The Eden Project sells do-it-yourself "Allotment Plot" garden sets, complete chicken houses, raised-bed gardening sets and many other great and easy set-ups.