Standing on the banks of the Vistula, the new museum, with a perforated CORTEN steel outer skin, was erected to document the work of theatre director Tadeusz Kantor. The building straddles a former power station that now contains the archive and an auditorium. Exhibition areas are housed in the bridge-like tract with a steel-frame structure that extends between the two staircase cores. A third support in steel stands between the existing buildings. The museum is underpinned by 160 pile foundations 11 m deep. Beneath the elevated bridge tract, a 600 m² area was created with an open-air stage. Reflections in the polished stainless-steel soffit suggest that the volume is in a constant state of movement.