The is a multi-purpose event facility located in Nakajima Park in Chūō-ku, Sapporo, Hokkaido, Japan. It was built in 1954 for the National Sports Festival of Japan. A concert by the rock band Rainbow in January 1978 resulted in one death when 2,000 fans rushed the stage.[1] By the end of the 1990s, the facility had lost its viability and was eventually converted to its current state.