Tokyo Dome is an indoor stadium in Bunkyo, Tokyo, Japan. It was designed as a baseball stadium following its predecessor, Korakuen Stadium. In Japan, it is often used as a unit of size; for example, "the new construction is five times the size of Tokyo Dome."

Bunkyō is a special ward in the Tokyo Metropolis in Japan. Situated in the middle of the ward area, Bunkyō is a residential and educational center. Beginning in the Meiji period, literati like Natsume Sōseki, as well as scholars and politicians have lived there. Bunkyō is home to the Tokyo Dome, Judo's Kōdōkan, and the University of Tokyo's Hongo Campus. Bunkyō has a sister-city relationship with Kaiserslautern in the Rhineland-Palatinate of Germany.