The pavilion on the HSLU campus is part of the research project “Think Earth”, initiated by Oxara, a spin-off of the ETH Zürich. The architecture was developed together with students and teachers at Lucerne University of Applied Sciences and Arts. In the small research building, clay is used in a variety of forms: flooring made of clay, stones from the excavated material, walls made of liquid clay through the addition of fibres and salts. The goal is to replace cementitious building materials with recyclable ones – without the need to invent new processes or machines. In the future scientific research into the properties of materials and the possibility of dismantling them will be conducted in the pavilion. The arched wall openings or the barrel vaults offer a sharp contrast and seem almost anachronistic – they distinguish the main room from the ancillary spaces and, -arranged behind one another, produce a multi-layered result.