. . "5.57E7"^^ . "Silverdome"@en . . . "The Silverdome, formerly known as the Pontiac Silverdome, is a privately owned stadium located in Pontiac, Michigan, United States. It opened in 1975 and sits on 127 acres (51 ha) of land. When the stadium opened, it featured a fiberglass fabric roof held up by air pressure, the first use of the technique in a major athletic facility. The roof has since been removed."@en . . . . "Pontiac Metropolitan Stadium (1975)"@en . "1975-08-23Z"^^ . "September 19, 1973" . "Pontiac Silverdome"@en . . . . . .