ATAH has designed an arts centre in the Chinese city of Shaoxing, which features a spiral staircase opening cut through the building.
The building was designed as the centrepiece of a commercial complex called the China Textile Centre (CTC), which is made up of a series of artistic and commercial spaces.
A spiralling walkway is carved through the glazed cylindrical building, revealing a circulation core that extends up through the centre of the building. The spiralling opening also doubles as a stage.
The Heli-stage's facade is wrapped in curved triangular double-glazed panels. The surface also includes projection technology that can display different patterns or graphics on the building's exterior.