Alamodome
The Alamodome is a domed 65,000-seat, multi-purpose facility used as a football, basketball, baseball stadium and convention center. It is located on the southeastern fringe of Downtown San Antonio, Texas, USA. The facility opened on May 15, 1993, having been constructed at a cost of $186 million.
The multi-purpose facility was intended to increase the city's convention traffic and attract a professional football franchise. It also placated the San Antonio Spurs' demands for a larger arena. The Spurs played in the Alamodome for a decade, then became disenchanted with the facility and convinced Bexar County to construct a new arena for them, now called the AT&T Center.
Features
The facility is a rectilinear 5-level stadium which can seat up to 65,000 spectators for a typical football game and is expandable to hold 72,000 spectators, allowing the possibility of hosting a Super Bowl.
However, it was designed from the ground up to easily convert into a basketball or hockey arena. Converting the stadium for basketball and hockey takes 12–18 hours to set up retractable seating and installing the playing surface. In this configuration, typically only the two lower levels at one or both ends are used. The arena configuration seats 20,662 spectators, but is expandable to 39,500 when the upper level is opened.