Astrodome (first multi-purpose domed stadium)

The Houston Astrodome, which opened in 1965 at the Texas Medical Center/NRG Park complex, is documented as the world's first multi-purpose, domed sports stadium and was popularly dubbed the "Eighth Wonder of the World." It introduced innovations such as a fully enclosed, air-conditioned environment for large-scale professional sports and entertainment events. The Astrodome was home to the Houston Astros (baseball) and Houston Oilers (football) and influenced subsequent domed stadium designs worldwide.