I have chosen the cathedral of Brasilia, by Oscar Niemeyer. It has a circular area of seventy meters in diameter, from which sixteen concrete columns (parabolic section pillars) were raised in a hyperboloid format. We can see two different pictures, one from outside and other from inside.
As a complex model I have chosen the Jubilee Church of Richard Meier, in Rome. It is composed of three curved walls like a ship's sails. Three circles of equal radius constitute 3 layers that together with the opposite wall constitute the body which is traversed by large glazed surfaces. We can see two pictures from outside but in different moments of a day. I used an illuminated glass as a material to highlight the window frames.