Nature, with its many forms, was always a source of inspiration for architects, regardless of time period. Vegetal or mineral structures were the model of many buildings around the world. The world's architecture becomes spectacular once more with the planned opening of the Qatar National Museum building in Doha, at the end of this year. The model for this impressive architectural creation is the Desert Rose. The Desert Rose is a strange, semiprecious stone, resulting from combining crystals clusters of gypsum or barite with sand grains.