Wood, the building’s leitmotif, is omnipresent, including a symbolic representation with five trees that create a distinctive atmosphere in various parts of the building: Bucida buceras are black olive trees originally native to tropical regions and which can grow to heights of up to two stories. These exotic visitors were chosen because their fine evergreen foliage copes well with room temperatures. The fourth and smallest floor by sur- face area stretches under the vaulted ceiling of the unusual wooden façade. Here, visitors are closer to the “skin of the build- ing” than anywhere else.