11_diagonal_street | location | south_africa <tsp> south_africa | capital | cape_town <tsp> south_africa | ethnicgroup | white_south_african <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 
coloured people are an ethnic group in south africa. which has cape town as its capital. white south africans are one of several ethnic groups in the country. also. one of the streets in the country is 11 diagonal street.11 diagonal street is an office tower in johannesburg, south africa