In 1994 the sculptor Eduardo Chillida had the opportunity to initiate the Tindaya Project in Fuerteventura, Canary Islands. A “work without materials” which opens a large interior space (approximately a cube with side length of 50 metres) in the heart of the mountain so that it can “offer men of every race and colour a great sculpture for tolerance”. From 1984 Chillida had the idea of intervening the space of a quarry and transform it into a work of art. This vision materialised in Tindaya arises when he realised that the work being done by the quarrymen, extracting stone from the mountain, was complementary with his own idea: that of introducing space into matter.