London, England, United Kingdom
Princess of Wales Conservatory Designed by PSA Projects and opened on 28 July 1987 as the world's most advanced energy-efficient conservatory. It incorporates ten different climatic zones, created and maintained by a fully integrated computer-controlled system. — Royal Botanic Gardens, Kew, Richmond
Listen to the audio guide for Princess of Wales Conservatory blue plaque Free on WIP — starts by itself when you arrive, even with the screen off