The Cathedral of Brasília is the Roman Catholic cathedral serving Brasília, Brazil, and serves as the seat of the Archdiocese of Brasília. It was designed by Oscar Niemeyer, and was completed and dedicated on May 31, 1970. This concrete-framed hyperboloid structure, appears with its glass roof to be reaching up, open, to heaven. The hyperboloid structure consists of 16 identical concrete columns assembled on site. These columns, having hyperbolic section and weighing 90 tonnes (99 tons), represent two hands moving upwards to heaven. →

 Oscar Niemeyer 

Oscar Niemeyer (1907 – 2012) was a Brazilian architect who is considered to be one of the key figures in the development of modern architecture. Niemeyer was best known for his design of civic buildings for Brasília, a planned city that became Brazil's capital in 1960, as well as his collaboration with other architects on the United Nations Headquarters in New York City. His exploration of the aesthetic possibilities of reinforced concrete was highly influential in the late 20th and early 21st centuries. Niemeyer was most famous for his use of abstract forms and curves. →