A 634-meter-tall broadcasting tower completed in 2012 as a new symbol of Tokyo. Visitors can easily spend a whole day in the tower with observation decks at 350 and 450 meters and a variety of shops and restaurants, an aquarium, planetarium, etc., on the bottom floors. Tokyo Skytree was built by mobilizing Japanese architectural technologies, including the ancient aseismic technique used in the five-storied pagoda of Horyuji Temple in Nara, the world’s oldest wooden building. Looking up at Tokyo Skytree, a little boy wonders, “How could they ever build such a humongous tower? Why doesn’t it fall like my toy blocks?” His wonderment may lead him to become a master architect 50 years from now.