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 | coloured <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 
south africa's ethnic groups include the coloured. 11 diagonal street is located here and it's capital is cape town. it's leaders include jacob zuma and cyril ramaphosa.11 diagonal street is an office tower in johannesburg, south africa