Hala Sportowo-Widowiskowa KSZO

The Hala Sportowo-Widowiskowa KSZO in the Hutnicze district of Ostrowiec Świętokrzyski stands where a social building from the 1930s once stood. A complex of older structures including a 1953 swimming pool and a 1964 sports hall was replaced by the new arena after demolition began in June 2009. The design by Pracownia Projektowa Janusza Pachowskiego provides 5 usable levels and professional lighting rated at 1500 lx, configured for digital television broadcasts.

The venue hosts the women's volleyball team AZS KSZO and the handball side KSZO Odlewnia. The capacity shifts with the sport: basketball matches fill 3,094 seats, while volleyball and handball events use fewer. The arena opened formally on May 6, 2011, following open days earlier that year.

The Polish women's volleyball team played France there in August 2011 and Cameroon in 2018. The Grand Prix of Women's Volleyball passed through in July 2017. A European Championship 2020 qualifier between Poland and Kosovo was held in October 2018. The venue also hosted the 2014 Polish Cup Final for women's volleyball, with matches played on March 8–9 of that year.

Beyond sport, the hall serves the arts. Concerts have drawn acts such as Lady Pank, Perfect, and Lao Che. The Alexander Choir performed in 2011 and 2012. Boxing galas have featured fighters like Mariusz Wach and Mateusz Masternak, with bouts against teams from Belarus and Lithuania in 2017 and 2018 respectively. The arena sits directly adjoining the Miejski Stadion Sportowy KSZO.