11_diagonal_street | location | south_africa <tsp> south_africa | capital | cape_town <tsp> south_africa | leadername | cyril_ramaphosa <tsp> south_africa | leadername | jacob_zuma <tsp> south_africa | ethnicgroup | white_south_african <sep> 11 diagonal street is an office tower in johannesburg, south africa it was built in 1983 to a height of 80 metres it is designed to look like a diamond as it reflects different views of the central business district from each angle of the buildingthe building's architect was helmut jahn 
11 diagonal street is located in south africa. which has cape town as its capital. among the country's leaders are cyril ramaphosa and jacob zuma. and white south africans are one of the ethnic groups there .11 diagonal street is an office tower in johannesburg, south africa