We designed the Gallery Lygia Pape at Inhotim, a contemporary art museum and botanic garden in Brumadinho, Minas Gerais, Brazil, as a building for a specific installation by Brazilian artist Lygia Pape, Ttéia. The installation pre-established the gallery's dimensions: a cube of 21x21x6 meters. The building was required to be closed and dark, as Ttéia is an art piece employing light. The site for the building was relatively small compared to the size requested by the curators. A plateau buried into the slope of a hill, accessed by a narrow ascending road in a forest, almost naturally defined the site plan by the size and configuration of the plateau. The visitor arrives at the plateau close to a 6-meter-high blind wall; the encounter happens abruptly. To minimize the impact of this encounter, we decreased the top slab of the cube and rotated it against the bottom slab while retaining the size of the footprint of the building. Our strategy created a triangulation of the walls and added depth to the façade, pushing it away from the visitor. The other aspect we considered for the project was that the projected installation is a work with no directionality that invites the visitor to circulate around it, gradually revealing itself.  By rotating the top of the cube, our building blurs the character of its dimensionality. Inside, the triangulation of the façade is also perceived in the circulation areas, which takes the visitors to the installation, simultaneously causing a sense of slight disorientation. The circulation is dark and intricately twisted. It extracts visitors from the “outside world” to a place of introspection, reflection, and spirituality, preparing them for the experience of Lygia Pape’s Ttéia.