The houses, built in the local vernacular, are spacious grottos tunneled into the sheer multicolored cliffs of the caldera, their façade slightly protruding from the edge of the cave. They appear to grow naturally out of the rocky landscape, which is set against a sweeping expanse of sea and sky. The homes are secluded, accessible via a stepped walkway, yet are well integrated into the town of Firostefani. Bordering the edge of a blue-tiled pool is a generous terrace that links all three homes and offers sweeping views of the caldera and the volcano.