where is the grand sumo arena in tokyo'
From Wikipedia, the free encyclopedia. RyÅgoku Kokugikan (ä¸¡å½å½æé¤¨, RyÅgoku Kokugikan) , also known as Ryougoku Sumo Hall, is an indoor sporting arena located in the Yokoami neighborhood (bordering to the RyÅgoku neighborhood) of Sumida, one of the 23 wards of Tokyo in Japan, next to the Edo-Tokyo Museum.