|Location||3,Koraku 1-Chome,Bunkyo-ku Tokyo|
|Owner||Tokyo Dome Corporation|
|Opening Day||March 17,1988|
|Site||112,456 sq m (1.21 x 106 sq ft)|
|Building||46,755 sq m (503,267 sq ft)|
|Field||13,000 sq m (139,931 sq ft)|
|Right, Left||100 m (328.1 ft)|
|Center||122 m(400.3 ft)|
|Capacity||1,240,000 cubic m (4.378x107 cubic ft)|
|Number of Floors||2 basements, 6 elevated|
|Maximum Height||56.190 m above ground leve l|
|Height above Playing Field||61.690m|
The Tokyo Dome is an air-supported dome.
Air is constantly blown into the dome by a pressure fan, keeping the air pressure inside the dome some 0.3% higher than that outside, thus holding up its covering membrane.
This pressure difference is equivalent to that between the 1st and 9th floor of a building and is hardly detectable by the human body.
Furthermore, in order to minimize the loss of air from inside the dome, revolving doors are used for all exits and entrances.