Yokoari | |
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 Main entrance | |
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| Location | 3-10 Shin-Yokohama, Kōhoku-ku, Yokohama, Kanagawa, Japan |
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| Coordinates | 35°30′44.60″N 139°37′12.20″E / 35.5123889°N 139.6200556°E |
| Owner | Yokohama Arena Corp. |
| Capacity | 17,000 Basketball: 13,083 |
| Construction | |
| Opened | April 1, 1989 |
| Renovated | July 1, 2016 |
| Architect | Takenaka Corporation |
Yokohama Arena (横浜アリーナ, Yokohama Arīna) is an indoor arena located in Yokohama, Kanagawa Prefecture, Japan. The capacity of the arena is 17,000 and was opened in 1989. The arena was modeled after US sports venue Madison Square Garden in New York City. It is a five-minute walk from the closest station, Shin-Yokohama Station on the JR/Yokohama Municipal Subway.
As one of the largest concert venues in the Kantō region, it is a frequent location for artists to end their tours. The spacious stage allows for more complex set design and lighting, but the reasonable size makes it easier to sell out than the Tokyo Dome.