Geometry of Brasilia

Nearest is the rectangular, National Library, then spherical exhibition centre, then the Cathedral, in the background — one of ministries. All creations of  Oscar Niemeyer.

At Ministry of Foreign Affairs.

Parliament of Brazil; two spherical shapes, convex and concave, are upper and lower chambers (again all by Oscar Niemeyer).

Church of St. Dom Bosco.

Moon “on its side” — geometry of projections onto the сelestial sphere at that latitude.