<Table> <Tr> <Th_colspan="2"> Qutub Minar </Th> </Tr> <Tr> <Td_colspan="2"> Qutub Minar in Delhi, India </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> Coordinates: 28 ° 31 ′ 28" N 77 ° 11 ′ 07" E ﻿ / ﻿ 28.524355 ° N 77.185248 ° E ﻿ / 28.524355; 77.185248 </Td> </Tr> <Tr> <Th> Height </Th> <Td> 73 metres (240 ft) </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th_colspan="2"> UNESCO World Heritage Site </Th> </Tr> <Tr> <Th> Type </Th> <Td> Cultural </Td> </Tr> <Tr> <Th> Criteria </Th> <Td> </Td> </Tr> <Tr> <Th> Designated </Th> <Td> 1993 (17th session) </Td> </Tr> <Tr> <Th> Reference no . </Th> <Td> 233 </Td> </Tr> <Tr> <Th> Country </Th> <Td> India </Td> </Tr> <Tr> <Th> Continent </Th> <Td> Asia </Td> </Tr> <Tr> <Th> Construction </Th> <Td> Started by Qutub - ud - din Aibak / completed by Iltutmish </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Location of Qutub Minar in India </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Qutub Minar </Th> </Tr>

When was the qutub minar granted the world heritage site status