Palacio de Congresos (former bullring), Badajoz (2016). On 14 August 1936 thousands had been rounded up here to be executed. In 2006, 70 years later, the bullring was demolished and replaced with the Badajoz Congress Centre.Castuera II (Concentration Camp), Badajoz (2016). The Gamonita mine shown here and other mines around the concentration camp are believed to contain hundreds of people, disappeared from April 1939 to March 1940.