This modern building has a façade that combines the uniformity of the steel walls and textile pergolas with the warmth of natural stone such as pink Travertine (rainbow). Nearly 9,000 m2 of this multi-colour sandstone with a honed finish were supplied and installed. The design is based on a generic measurement of 143 x 70 x 3 cm with the long edges machined with anchoring slots. The veins are placed horizontally and the support is a vertical aluminium structure with six fixing points per piece. The ventilation openings in the installations areas are enclosed with sheets of the same material measuring approximately 235 x 30 x 3 cm, placed vertically, and with claddings on the parapets and walls of the terraces.