Located at 2 Pomorska Street in Kraków, the building known as Dom Śląski holds one of the darkest legacies in the city. During the Nazi occupation (1939–1945), it served as the headquarters of the Gestapo, the German secret police responsible for crushing resistance and persecuting anyone suspected of anti-German activity. The building housed offices and basement prison cells where members of the Polish underground, clergy, intellectuals, and ordinary citizens were interrogated, tortured, and often executed. Thousands of Kraków’s residents passed through its corridors; for many, it was the last stop before being sent to concentration camps such as Auschwitz or Płaszów.

After the war, from 1945 to 1956, the same site was taken over by the communist security service (Urząd Bezpieczeństwa), which continued the cycle of fear under a different ideology. Former Gestapo cells once again echoed with cries of prisoners — this time soldiers of the Polish Home Army, political opponents, and civilians accused of disloyalty. Pomorska Street thus became a rare and haunting symbol of two totalitarian systems using the same walls for oppression. Its dual legacy makes it one of the most significant historical sites in post-war Poland. To understand this place more deeply, it is worth tracing the story of the building itself – from its original purpose to the horrors that unfolded within its walls.