Sapporo Dome (札幌ドーム)
Official site (in English)
Sapporo Dome is located in Hitsujigaoka in Hokkaido.
It seats up to around 53,000.
Seating chart. (note that this does not show Arena seats. These tend to vary depending on the set up of the stage)
Access:
札幌市営地下鉄東豊線 Sapporo City Metro Toho Line (light blue line) 《福住駅》 Fukuzumi Station.
Take the #3 exit to the street level and you should see the dome in the distance to your right. To get to the dome, take the pedestrian crossing. The goods are usually sold on the opposite side of the dome so walk towards the corridors and head to the South side of the dome.
Note: There are also buses and taxis available.