We visit Akasaka, a commercial district in the heart of Tokyo. As we explore, we learn how the hilly terrain shaped its development as a hub for politicians, business leaders and foreign dignitaries.

Emperor Naruhito and Empress Masako attended a spring garden party with about 1,000 guests at the Akasaka Imperial Garden in the Moto-Akasaka district of Tokyo’s Minato Ward on May 11. It marked ...