National Trust for Historic Places
Constructed in 1964, the Astrodome was deemed the “Eighth Wonder of the World” when it opened in 1965. As the world’s first indoor, air conditioned domed stadium, the 18-story multipurpose structure set the bar for arena design and construction for decades to come. A year after opening, it showcased the first installation of an artificial playing surface, soon to be known as Astroturf.
The Dome hosted a variety of sports and entertainment activities in its 40-plus year run. MLB’s Houston Astros and the NFL’s Houston Oilers both claimed it as home field. It was the backdrop for the 1973 “Battle of the Sexes” tennis match where Billie Jean King defeated Bobby Riggs, as well as for Evel Knievel’s world-record-setting jump in 1971. Countless celebrities performed there, including Judy Garland, the Supremes, Elvis, Selena, and George Strait. It even witnessed major current events: The 1992 Republican Convention was held there, and thousands of evacuees from New Orleans took refuge under its roof after Hurricane Katrina.