Nicknamed “the Big Dome“, it is one of the largest indoor arenas in Asia and one of the world’s largest clear span domes. The dome measures approximately 108.0 meters making it the largest dome in Asia from its opening in 1960 until 2001 when it was surpassed by the Ōita Stadium in Japan with a dome measuring 274.0 meters.

The Araneta Coliseum was constructed from 1957 to late 1959, and designed and built by Architect Dominador Lacson Lugtu and Engineer Leonardo Onjunco Lugtu. It occupies a total land area of almost 40,000 square meters, and has a floor area of 23,000 square meters with a total capacity of 20,000 seats.

It is the main venue of the Philippine Basketball Association and for the basketball games of the National Collegiate Athletic Association and the University Athletic Association of the Philippines.

The Big Dome is also used for boxing, cockfighting, local and international concerts, circuses, religious gatherings, beauty pageants and more.

According to Wikipedia.