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The Alamodome is a domed 65,000 seat, multi-purpose facility used as a football, basketball stadium and convention center. It's located on the southeastern fringe of Downtown San Antonio, Texas, USA. The facility opened on May 15, 1993, at a cost of $186 million.

Along with placating the San Antonio Spurs owner Red McCombs demands for a larger basketball venue, the multi-purpose facility was intended to increase the city's convention traffic and attract a professional football franchise. The Spurs played basketball 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 at the San Antonio Livestock Exposition Inc.

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. Configuring the arena for basketball or 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.

The Alamodome opened with 38 luxury suites and 6,000 club level seats. The original design specifications called for 66 luxury suites. Since the San Antonio Spurs were the only occupant at the time, only 38 luxury suites in the north end of the facility were built. The footprints for the 28 unbuilt luxury suites were open floor space just behind the club level seats that surround the south end of the facility. In 2006, the Alamodome underwent an expansion to accommodate 14 new luxury suites.[2] The Sports Club and the Top of the Dome restaurant also received renovations in 2004.

The Alamodome has two permanent Olympic-size ice rinks that can be used for NHL games, figure skating and speed skating. The facility also contains 30,000 square feet (2,800 m2) of meeting rooms and 160,000 square feet (15,000 m2) of continuous exhibit space.