Born and raised in Rio , Niemeyer was an early master of modern architecture in Brazil , a fingerprint that became clear after he was commissioned alongside his mentor Lucio Costa to design Brazil 's new capital , Brasilia . He was 104 of Rio de Janeiro 's geniuses , the nation 's president says . He was one . The mayor of Brazil called for the last month of mourning .
He was 104 of Rio de Janeiro 's geniuses , the nation 's president says . He was one . The mayor of Brazil called for the last month of mourning .