Architectural Features

Facilities Capacity	Area
General	Name	Tokyo Dome
	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
Capacity	55,000 persons
Roof Structure	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.