Originally called the Harris County Domed Stadium, the Astrodome was completed in 1964.

Conceived as the home of the Houston Colts and Houston
Oilers, it was termed by many as the Eighth Wonder of the World

It was the first time that a stadium was built for both baseball and football that was
totally enclosed and fully air-conditioned. The building covers 9.14 acres of land.

Circular in shape, the outer diameter of the Astrodome is 710' and the clear span of the dome roof is 642'.