THe architecture of 'Frank Llyod Wright'- AMerican has such a great connection to the earth. He uses concrete to reinforce the shape of the design and to maintain the balance. Moreover, due to the use of the concrete, a correspondence to the nature could exist. Most of the buildings are predominantly built for a certain person and location.

The first image is 'Falling water' and the second one is 'Massaro's house' (2005). The Massaro House long building is created in a shape similar to a yacht. It is anchored off a rocky island in the Mahopac lake, New York. The building is extended upon the water in long horizontal lines; with the materials used such as concrete, glass, stone and copper that merge with the surrounding natural landscape.

Source: http://blog.uncovering.org/en/archives/2008/08/massaro_house_frank_lloyd_wrights_posthumous_work.html