Among the architectural extravaganzas created by the 145 participating countries at the Milan Expo 2015—whose theme is “feeding the planet, energy for life”—none has generated more buzz, literally, than the U.K. pavilion. Designed by artist Wolfgang Buttress with a team of scientists and engineers, the project takes its cues from the honeybee, a troubled hero of the world’s ecosystem and food supply. Visitors first pass through an orchard and a meadow inspired by the British countryside before arriving at the “hive”, an ethereal structure of honeycomb-like aluminum latticework. Inside, a multi­sensory experience takes hold, with a musical soundtrack that incorporates bee noises and an ever-changing display of LED lights linked to the real-time activity of hives in Nottingham, England. The pavilion, open through October 31, is a captivating reminder of these small creatures’ enormous impact.